| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2018, Intel Corporation. */ |
| |
| #include "ice.h" |
| #include "ice_base.h" |
| #include "ice_flow.h" |
| #include "ice_lib.h" |
| #include "ice_fltr.h" |
| #include "ice_dcb_lib.h" |
| #include "ice_devlink.h" |
| |
| /** |
| * ice_vsi_type_str - maps VSI type enum to string equivalents |
| * @vsi_type: VSI type enum |
| */ |
| const char *ice_vsi_type_str(enum ice_vsi_type vsi_type) |
| { |
| switch (vsi_type) { |
| case ICE_VSI_PF: |
| return "ICE_VSI_PF"; |
| case ICE_VSI_VF: |
| return "ICE_VSI_VF"; |
| case ICE_VSI_CTRL: |
| return "ICE_VSI_CTRL"; |
| case ICE_VSI_CHNL: |
| return "ICE_VSI_CHNL"; |
| case ICE_VSI_LB: |
| return "ICE_VSI_LB"; |
| case ICE_VSI_SWITCHDEV_CTRL: |
| return "ICE_VSI_SWITCHDEV_CTRL"; |
| default: |
| return "unknown"; |
| } |
| } |
| |
| /** |
| * ice_vsi_ctrl_all_rx_rings - Start or stop a VSI's Rx rings |
| * @vsi: the VSI being configured |
| * @ena: start or stop the Rx rings |
| * |
| * First enable/disable all of the Rx rings, flush any remaining writes, and |
| * then verify that they have all been enabled/disabled successfully. This will |
| * let all of the register writes complete when enabling/disabling the Rx rings |
| * before waiting for the change in hardware to complete. |
| */ |
| static int ice_vsi_ctrl_all_rx_rings(struct ice_vsi *vsi, bool ena) |
| { |
| int ret = 0; |
| u16 i; |
| |
| ice_for_each_rxq(vsi, i) |
| ice_vsi_ctrl_one_rx_ring(vsi, ena, i, false); |
| |
| ice_flush(&vsi->back->hw); |
| |
| ice_for_each_rxq(vsi, i) { |
| ret = ice_vsi_wait_one_rx_ring(vsi, ena, i); |
| if (ret) |
| break; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * ice_vsi_alloc_arrays - Allocate queue and vector pointer arrays for the VSI |
| * @vsi: VSI pointer |
| * |
| * On error: returns error code (negative) |
| * On success: returns 0 |
| */ |
| static int ice_vsi_alloc_arrays(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| |
| dev = ice_pf_to_dev(pf); |
| if (vsi->type == ICE_VSI_CHNL) |
| return 0; |
| |
| /* allocate memory for both Tx and Rx ring pointers */ |
| vsi->tx_rings = devm_kcalloc(dev, vsi->alloc_txq, |
| sizeof(*vsi->tx_rings), GFP_KERNEL); |
| if (!vsi->tx_rings) |
| return -ENOMEM; |
| |
| vsi->rx_rings = devm_kcalloc(dev, vsi->alloc_rxq, |
| sizeof(*vsi->rx_rings), GFP_KERNEL); |
| if (!vsi->rx_rings) |
| goto err_rings; |
| |
| /* txq_map needs to have enough space to track both Tx (stack) rings |
| * and XDP rings; at this point vsi->num_xdp_txq might not be set, |
| * so use num_possible_cpus() as we want to always provide XDP ring |
| * per CPU, regardless of queue count settings from user that might |
| * have come from ethtool's set_channels() callback; |
| */ |
| vsi->txq_map = devm_kcalloc(dev, (vsi->alloc_txq + num_possible_cpus()), |
| sizeof(*vsi->txq_map), GFP_KERNEL); |
| |
| if (!vsi->txq_map) |
| goto err_txq_map; |
| |
| vsi->rxq_map = devm_kcalloc(dev, vsi->alloc_rxq, |
| sizeof(*vsi->rxq_map), GFP_KERNEL); |
| if (!vsi->rxq_map) |
| goto err_rxq_map; |
| |
| /* There is no need to allocate q_vectors for a loopback VSI. */ |
| if (vsi->type == ICE_VSI_LB) |
| return 0; |
| |
| /* allocate memory for q_vector pointers */ |
| vsi->q_vectors = devm_kcalloc(dev, vsi->num_q_vectors, |
| sizeof(*vsi->q_vectors), GFP_KERNEL); |
| if (!vsi->q_vectors) |
| goto err_vectors; |
| |
| vsi->af_xdp_zc_qps = bitmap_zalloc(max_t(int, vsi->alloc_txq, vsi->alloc_rxq), GFP_KERNEL); |
| if (!vsi->af_xdp_zc_qps) |
| goto err_zc_qps; |
| |
| return 0; |
| |
| err_zc_qps: |
| devm_kfree(dev, vsi->q_vectors); |
| err_vectors: |
| devm_kfree(dev, vsi->rxq_map); |
| err_rxq_map: |
| devm_kfree(dev, vsi->txq_map); |
| err_txq_map: |
| devm_kfree(dev, vsi->rx_rings); |
| err_rings: |
| devm_kfree(dev, vsi->tx_rings); |
| return -ENOMEM; |
| } |
| |
| /** |
| * ice_vsi_set_num_desc - Set number of descriptors for queues on this VSI |
| * @vsi: the VSI being configured |
| */ |
| static void ice_vsi_set_num_desc(struct ice_vsi *vsi) |
| { |
| switch (vsi->type) { |
| case ICE_VSI_PF: |
| case ICE_VSI_SWITCHDEV_CTRL: |
| case ICE_VSI_CTRL: |
| case ICE_VSI_LB: |
| /* a user could change the values of num_[tr]x_desc using |
| * ethtool -G so we should keep those values instead of |
| * overwriting them with the defaults. |
| */ |
| if (!vsi->num_rx_desc) |
| vsi->num_rx_desc = ICE_DFLT_NUM_RX_DESC; |
| if (!vsi->num_tx_desc) |
| vsi->num_tx_desc = ICE_DFLT_NUM_TX_DESC; |
| break; |
| default: |
| dev_dbg(ice_pf_to_dev(vsi->back), "Not setting number of Tx/Rx descriptors for VSI type %d\n", |
| vsi->type); |
| break; |
| } |
| } |
| |
| /** |
| * ice_vsi_set_num_qs - Set number of queues, descriptors and vectors for a VSI |
| * @vsi: the VSI being configured |
| * @vf_id: ID of the VF being configured |
| * |
| * Return 0 on success and a negative value on error |
| */ |
| static void ice_vsi_set_num_qs(struct ice_vsi *vsi, u16 vf_id) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_vf *vf = NULL; |
| |
| if (vsi->type == ICE_VSI_VF) |
| vsi->vf_id = vf_id; |
| else |
| vsi->vf_id = ICE_INVAL_VFID; |
| |
| switch (vsi->type) { |
| case ICE_VSI_PF: |
| if (vsi->req_txq) { |
| vsi->alloc_txq = vsi->req_txq; |
| vsi->num_txq = vsi->req_txq; |
| } else { |
| vsi->alloc_txq = min3(pf->num_lan_msix, |
| ice_get_avail_txq_count(pf), |
| (u16)num_online_cpus()); |
| } |
| |
| pf->num_lan_tx = vsi->alloc_txq; |
| |
| /* only 1 Rx queue unless RSS is enabled */ |
| if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| vsi->alloc_rxq = 1; |
| } else { |
| if (vsi->req_rxq) { |
| vsi->alloc_rxq = vsi->req_rxq; |
| vsi->num_rxq = vsi->req_rxq; |
| } else { |
| vsi->alloc_rxq = min3(pf->num_lan_msix, |
| ice_get_avail_rxq_count(pf), |
| (u16)num_online_cpus()); |
| } |
| } |
| |
| pf->num_lan_rx = vsi->alloc_rxq; |
| |
| vsi->num_q_vectors = min_t(int, pf->num_lan_msix, |
| max_t(int, vsi->alloc_rxq, |
| vsi->alloc_txq)); |
| break; |
| case ICE_VSI_SWITCHDEV_CTRL: |
| /* The number of queues for ctrl VSI is equal to number of VFs. |
| * Each ring is associated to the corresponding VF_PR netdev. |
| */ |
| vsi->alloc_txq = pf->num_alloc_vfs; |
| vsi->alloc_rxq = pf->num_alloc_vfs; |
| vsi->num_q_vectors = 1; |
| break; |
| case ICE_VSI_VF: |
| vf = &pf->vf[vsi->vf_id]; |
| if (vf->num_req_qs) |
| vf->num_vf_qs = vf->num_req_qs; |
| vsi->alloc_txq = vf->num_vf_qs; |
| vsi->alloc_rxq = vf->num_vf_qs; |
| /* pf->num_msix_per_vf includes (VF miscellaneous vector + |
| * data queue interrupts). Since vsi->num_q_vectors is number |
| * of queues vectors, subtract 1 (ICE_NONQ_VECS_VF) from the |
| * original vector count |
| */ |
| vsi->num_q_vectors = pf->num_msix_per_vf - ICE_NONQ_VECS_VF; |
| break; |
| case ICE_VSI_CTRL: |
| vsi->alloc_txq = 1; |
| vsi->alloc_rxq = 1; |
| vsi->num_q_vectors = 1; |
| break; |
| case ICE_VSI_CHNL: |
| vsi->alloc_txq = 0; |
| vsi->alloc_rxq = 0; |
| break; |
| case ICE_VSI_LB: |
| vsi->alloc_txq = 1; |
| vsi->alloc_rxq = 1; |
| break; |
| default: |
| dev_warn(ice_pf_to_dev(pf), "Unknown VSI type %d\n", vsi->type); |
| break; |
| } |
| |
| ice_vsi_set_num_desc(vsi); |
| } |
| |
| /** |
| * ice_get_free_slot - get the next non-NULL location index in array |
| * @array: array to search |
| * @size: size of the array |
| * @curr: last known occupied index to be used as a search hint |
| * |
| * void * is being used to keep the functionality generic. This lets us use this |
| * function on any array of pointers. |
| */ |
| static int ice_get_free_slot(void *array, int size, int curr) |
| { |
| int **tmp_array = (int **)array; |
| int next; |
| |
| if (curr < (size - 1) && !tmp_array[curr + 1]) { |
| next = curr + 1; |
| } else { |
| int i = 0; |
| |
| while ((i < size) && (tmp_array[i])) |
| i++; |
| if (i == size) |
| next = ICE_NO_VSI; |
| else |
| next = i; |
| } |
| return next; |
| } |
| |
| /** |
| * ice_vsi_delete - delete a VSI from the switch |
| * @vsi: pointer to VSI being removed |
| */ |
| void ice_vsi_delete(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_vsi_ctx *ctxt; |
| int status; |
| |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return; |
| |
| if (vsi->type == ICE_VSI_VF) |
| ctxt->vf_num = vsi->vf_id; |
| ctxt->vsi_num = vsi->vsi_num; |
| |
| memcpy(&ctxt->info, &vsi->info, sizeof(ctxt->info)); |
| |
| status = ice_free_vsi(&pf->hw, vsi->idx, ctxt, false, NULL); |
| if (status) |
| dev_err(ice_pf_to_dev(pf), "Failed to delete VSI %i in FW - error: %d\n", |
| vsi->vsi_num, status); |
| |
| kfree(ctxt); |
| } |
| |
| /** |
| * ice_vsi_free_arrays - De-allocate queue and vector pointer arrays for the VSI |
| * @vsi: pointer to VSI being cleared |
| */ |
| static void ice_vsi_free_arrays(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| |
| dev = ice_pf_to_dev(pf); |
| |
| if (vsi->af_xdp_zc_qps) { |
| bitmap_free(vsi->af_xdp_zc_qps); |
| vsi->af_xdp_zc_qps = NULL; |
| } |
| /* free the ring and vector containers */ |
| if (vsi->q_vectors) { |
| devm_kfree(dev, vsi->q_vectors); |
| vsi->q_vectors = NULL; |
| } |
| if (vsi->tx_rings) { |
| devm_kfree(dev, vsi->tx_rings); |
| vsi->tx_rings = NULL; |
| } |
| if (vsi->rx_rings) { |
| devm_kfree(dev, vsi->rx_rings); |
| vsi->rx_rings = NULL; |
| } |
| if (vsi->txq_map) { |
| devm_kfree(dev, vsi->txq_map); |
| vsi->txq_map = NULL; |
| } |
| if (vsi->rxq_map) { |
| devm_kfree(dev, vsi->rxq_map); |
| vsi->rxq_map = NULL; |
| } |
| } |
| |
| /** |
| * ice_vsi_clear - clean up and deallocate the provided VSI |
| * @vsi: pointer to VSI being cleared |
| * |
| * This deallocates the VSI's queue resources, removes it from the PF's |
| * VSI array if necessary, and deallocates the VSI |
| * |
| * Returns 0 on success, negative on failure |
| */ |
| int ice_vsi_clear(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = NULL; |
| struct device *dev; |
| |
| if (!vsi) |
| return 0; |
| |
| if (!vsi->back) |
| return -EINVAL; |
| |
| pf = vsi->back; |
| dev = ice_pf_to_dev(pf); |
| |
| if (!pf->vsi[vsi->idx] || pf->vsi[vsi->idx] != vsi) { |
| dev_dbg(dev, "vsi does not exist at pf->vsi[%d]\n", vsi->idx); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&pf->sw_mutex); |
| /* updates the PF for this cleared VSI */ |
| |
| pf->vsi[vsi->idx] = NULL; |
| if (vsi->idx < pf->next_vsi && vsi->type != ICE_VSI_CTRL) |
| pf->next_vsi = vsi->idx; |
| if (vsi->idx < pf->next_vsi && vsi->type == ICE_VSI_CTRL && |
| vsi->vf_id != ICE_INVAL_VFID) |
| pf->next_vsi = vsi->idx; |
| |
| ice_vsi_free_arrays(vsi); |
| mutex_unlock(&pf->sw_mutex); |
| devm_kfree(dev, vsi); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_msix_clean_ctrl_vsi - MSIX mode interrupt handler for ctrl VSI |
| * @irq: interrupt number |
| * @data: pointer to a q_vector |
| */ |
| static irqreturn_t ice_msix_clean_ctrl_vsi(int __always_unused irq, void *data) |
| { |
| struct ice_q_vector *q_vector = (struct ice_q_vector *)data; |
| |
| if (!q_vector->tx.tx_ring) |
| return IRQ_HANDLED; |
| |
| #define FDIR_RX_DESC_CLEAN_BUDGET 64 |
| ice_clean_rx_irq(q_vector->rx.rx_ring, FDIR_RX_DESC_CLEAN_BUDGET); |
| ice_clean_ctrl_tx_irq(q_vector->tx.tx_ring); |
| |
| return IRQ_HANDLED; |
| } |
| |
| /** |
| * ice_msix_clean_rings - MSIX mode Interrupt Handler |
| * @irq: interrupt number |
| * @data: pointer to a q_vector |
| */ |
| static irqreturn_t ice_msix_clean_rings(int __always_unused irq, void *data) |
| { |
| struct ice_q_vector *q_vector = (struct ice_q_vector *)data; |
| |
| if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring) |
| return IRQ_HANDLED; |
| |
| q_vector->total_events++; |
| |
| napi_schedule(&q_vector->napi); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t ice_eswitch_msix_clean_rings(int __always_unused irq, void *data) |
| { |
| struct ice_q_vector *q_vector = (struct ice_q_vector *)data; |
| struct ice_pf *pf = q_vector->vsi->back; |
| int i; |
| |
| if (!q_vector->tx.tx_ring && !q_vector->rx.rx_ring) |
| return IRQ_HANDLED; |
| |
| ice_for_each_vf(pf, i) |
| napi_schedule(&pf->vf[i].repr->q_vector->napi); |
| |
| return IRQ_HANDLED; |
| } |
| |
| /** |
| * ice_vsi_alloc - Allocates the next available struct VSI in the PF |
| * @pf: board private structure |
| * @vsi_type: type of VSI |
| * @ch: ptr to channel |
| * @vf_id: ID of the VF being configured |
| * |
| * returns a pointer to a VSI on success, NULL on failure. |
| */ |
| static struct ice_vsi * |
| ice_vsi_alloc(struct ice_pf *pf, enum ice_vsi_type vsi_type, |
| struct ice_channel *ch, u16 vf_id) |
| { |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_vsi *vsi = NULL; |
| |
| /* Need to protect the allocation of the VSIs at the PF level */ |
| mutex_lock(&pf->sw_mutex); |
| |
| /* If we have already allocated our maximum number of VSIs, |
| * pf->next_vsi will be ICE_NO_VSI. If not, pf->next_vsi index |
| * is available to be populated |
| */ |
| if (pf->next_vsi == ICE_NO_VSI) { |
| dev_dbg(dev, "out of VSI slots!\n"); |
| goto unlock_pf; |
| } |
| |
| vsi = devm_kzalloc(dev, sizeof(*vsi), GFP_KERNEL); |
| if (!vsi) |
| goto unlock_pf; |
| |
| vsi->type = vsi_type; |
| vsi->back = pf; |
| set_bit(ICE_VSI_DOWN, vsi->state); |
| |
| if (vsi_type == ICE_VSI_VF) |
| ice_vsi_set_num_qs(vsi, vf_id); |
| else if (vsi_type != ICE_VSI_CHNL) |
| ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID); |
| |
| switch (vsi->type) { |
| case ICE_VSI_SWITCHDEV_CTRL: |
| if (ice_vsi_alloc_arrays(vsi)) |
| goto err_rings; |
| |
| /* Setup eswitch MSIX irq handler for VSI */ |
| vsi->irq_handler = ice_eswitch_msix_clean_rings; |
| break; |
| case ICE_VSI_PF: |
| if (ice_vsi_alloc_arrays(vsi)) |
| goto err_rings; |
| |
| /* Setup default MSIX irq handler for VSI */ |
| vsi->irq_handler = ice_msix_clean_rings; |
| break; |
| case ICE_VSI_CTRL: |
| if (ice_vsi_alloc_arrays(vsi)) |
| goto err_rings; |
| |
| /* Setup ctrl VSI MSIX irq handler */ |
| vsi->irq_handler = ice_msix_clean_ctrl_vsi; |
| break; |
| case ICE_VSI_VF: |
| if (ice_vsi_alloc_arrays(vsi)) |
| goto err_rings; |
| break; |
| case ICE_VSI_CHNL: |
| if (!ch) |
| goto err_rings; |
| vsi->num_rxq = ch->num_rxq; |
| vsi->num_txq = ch->num_txq; |
| vsi->next_base_q = ch->base_q; |
| break; |
| case ICE_VSI_LB: |
| if (ice_vsi_alloc_arrays(vsi)) |
| goto err_rings; |
| break; |
| default: |
| dev_warn(dev, "Unknown VSI type %d\n", vsi->type); |
| goto unlock_pf; |
| } |
| |
| if (vsi->type == ICE_VSI_CTRL && vf_id == ICE_INVAL_VFID) { |
| /* Use the last VSI slot as the index for PF control VSI */ |
| vsi->idx = pf->num_alloc_vsi - 1; |
| pf->ctrl_vsi_idx = vsi->idx; |
| pf->vsi[vsi->idx] = vsi; |
| } else { |
| /* fill slot and make note of the index */ |
| vsi->idx = pf->next_vsi; |
| pf->vsi[pf->next_vsi] = vsi; |
| |
| /* prepare pf->next_vsi for next use */ |
| pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi, |
| pf->next_vsi); |
| } |
| |
| if (vsi->type == ICE_VSI_CTRL && vf_id != ICE_INVAL_VFID) |
| pf->vf[vf_id].ctrl_vsi_idx = vsi->idx; |
| goto unlock_pf; |
| |
| err_rings: |
| devm_kfree(dev, vsi); |
| vsi = NULL; |
| unlock_pf: |
| mutex_unlock(&pf->sw_mutex); |
| return vsi; |
| } |
| |
| /** |
| * ice_alloc_fd_res - Allocate FD resource for a VSI |
| * @vsi: pointer to the ice_vsi |
| * |
| * This allocates the FD resources |
| * |
| * Returns 0 on success, -EPERM on no-op or -EIO on failure |
| */ |
| static int ice_alloc_fd_res(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| u32 g_val, b_val; |
| |
| /* Flow Director filters are only allocated/assigned to the PF VSI which |
| * passes the traffic. The CTRL VSI is only used to add/delete filters |
| * so we don't allocate resources to it |
| */ |
| |
| /* FD filters from guaranteed pool per VSI */ |
| g_val = pf->hw.func_caps.fd_fltr_guar; |
| if (!g_val) |
| return -EPERM; |
| |
| /* FD filters from best effort pool */ |
| b_val = pf->hw.func_caps.fd_fltr_best_effort; |
| if (!b_val) |
| return -EPERM; |
| |
| if (!(vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_VF)) |
| return -EPERM; |
| |
| if (!test_bit(ICE_FLAG_FD_ENA, pf->flags)) |
| return -EPERM; |
| |
| vsi->num_gfltr = g_val / pf->num_alloc_vsi; |
| |
| /* each VSI gets same "best_effort" quota */ |
| vsi->num_bfltr = b_val; |
| |
| if (vsi->type == ICE_VSI_VF) { |
| vsi->num_gfltr = 0; |
| |
| /* each VSI gets same "best_effort" quota */ |
| vsi->num_bfltr = b_val; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_get_qs - Assign queues from PF to VSI |
| * @vsi: the VSI to assign queues to |
| * |
| * Returns 0 on success and a negative value on error |
| */ |
| static int ice_vsi_get_qs(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_qs_cfg tx_qs_cfg = { |
| .qs_mutex = &pf->avail_q_mutex, |
| .pf_map = pf->avail_txqs, |
| .pf_map_size = pf->max_pf_txqs, |
| .q_count = vsi->alloc_txq, |
| .scatter_count = ICE_MAX_SCATTER_TXQS, |
| .vsi_map = vsi->txq_map, |
| .vsi_map_offset = 0, |
| .mapping_mode = ICE_VSI_MAP_CONTIG |
| }; |
| struct ice_qs_cfg rx_qs_cfg = { |
| .qs_mutex = &pf->avail_q_mutex, |
| .pf_map = pf->avail_rxqs, |
| .pf_map_size = pf->max_pf_rxqs, |
| .q_count = vsi->alloc_rxq, |
| .scatter_count = ICE_MAX_SCATTER_RXQS, |
| .vsi_map = vsi->rxq_map, |
| .vsi_map_offset = 0, |
| .mapping_mode = ICE_VSI_MAP_CONTIG |
| }; |
| int ret; |
| |
| if (vsi->type == ICE_VSI_CHNL) |
| return 0; |
| |
| ret = __ice_vsi_get_qs(&tx_qs_cfg); |
| if (ret) |
| return ret; |
| vsi->tx_mapping_mode = tx_qs_cfg.mapping_mode; |
| |
| ret = __ice_vsi_get_qs(&rx_qs_cfg); |
| if (ret) |
| return ret; |
| vsi->rx_mapping_mode = rx_qs_cfg.mapping_mode; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_put_qs - Release queues from VSI to PF |
| * @vsi: the VSI that is going to release queues |
| */ |
| static void ice_vsi_put_qs(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| int i; |
| |
| mutex_lock(&pf->avail_q_mutex); |
| |
| ice_for_each_alloc_txq(vsi, i) { |
| clear_bit(vsi->txq_map[i], pf->avail_txqs); |
| vsi->txq_map[i] = ICE_INVAL_Q_INDEX; |
| } |
| |
| ice_for_each_alloc_rxq(vsi, i) { |
| clear_bit(vsi->rxq_map[i], pf->avail_rxqs); |
| vsi->rxq_map[i] = ICE_INVAL_Q_INDEX; |
| } |
| |
| mutex_unlock(&pf->avail_q_mutex); |
| } |
| |
| /** |
| * ice_is_safe_mode |
| * @pf: pointer to the PF struct |
| * |
| * returns true if driver is in safe mode, false otherwise |
| */ |
| bool ice_is_safe_mode(struct ice_pf *pf) |
| { |
| return !test_bit(ICE_FLAG_ADV_FEATURES, pf->flags); |
| } |
| |
| /** |
| * ice_is_aux_ena |
| * @pf: pointer to the PF struct |
| * |
| * returns true if AUX devices/drivers are supported, false otherwise |
| */ |
| bool ice_is_aux_ena(struct ice_pf *pf) |
| { |
| return test_bit(ICE_FLAG_AUX_ENA, pf->flags); |
| } |
| |
| /** |
| * ice_vsi_clean_rss_flow_fld - Delete RSS configuration |
| * @vsi: the VSI being cleaned up |
| * |
| * This function deletes RSS input set for all flows that were configured |
| * for this VSI |
| */ |
| static void ice_vsi_clean_rss_flow_fld(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| int status; |
| |
| if (ice_is_safe_mode(pf)) |
| return; |
| |
| status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx); |
| if (status) |
| dev_dbg(ice_pf_to_dev(pf), "ice_rem_vsi_rss_cfg failed for vsi = %d, error = %d\n", |
| vsi->vsi_num, status); |
| } |
| |
| /** |
| * ice_rss_clean - Delete RSS related VSI structures and configuration |
| * @vsi: the VSI being removed |
| */ |
| static void ice_rss_clean(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| |
| dev = ice_pf_to_dev(pf); |
| |
| if (vsi->rss_hkey_user) |
| devm_kfree(dev, vsi->rss_hkey_user); |
| if (vsi->rss_lut_user) |
| devm_kfree(dev, vsi->rss_lut_user); |
| |
| ice_vsi_clean_rss_flow_fld(vsi); |
| /* remove RSS replay list */ |
| if (!ice_is_safe_mode(pf)) |
| ice_rem_vsi_rss_list(&pf->hw, vsi->idx); |
| } |
| |
| /** |
| * ice_vsi_set_rss_params - Setup RSS capabilities per VSI type |
| * @vsi: the VSI being configured |
| */ |
| static void ice_vsi_set_rss_params(struct ice_vsi *vsi) |
| { |
| struct ice_hw_common_caps *cap; |
| struct ice_pf *pf = vsi->back; |
| |
| if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| vsi->rss_size = 1; |
| return; |
| } |
| |
| cap = &pf->hw.func_caps.common_cap; |
| switch (vsi->type) { |
| case ICE_VSI_CHNL: |
| case ICE_VSI_PF: |
| /* PF VSI will inherit RSS instance of PF */ |
| vsi->rss_table_size = (u16)cap->rss_table_size; |
| if (vsi->type == ICE_VSI_CHNL) |
| vsi->rss_size = min_t(u16, vsi->num_rxq, |
| BIT(cap->rss_table_entry_width)); |
| else |
| vsi->rss_size = min_t(u16, num_online_cpus(), |
| BIT(cap->rss_table_entry_width)); |
| vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF; |
| break; |
| case ICE_VSI_SWITCHDEV_CTRL: |
| vsi->rss_table_size = ICE_VSIQF_HLUT_ARRAY_SIZE; |
| vsi->rss_size = min_t(u16, num_online_cpus(), |
| BIT(cap->rss_table_entry_width)); |
| vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI; |
| break; |
| case ICE_VSI_VF: |
| /* VF VSI will get a small RSS table. |
| * For VSI_LUT, LUT size should be set to 64 bytes. |
| */ |
| vsi->rss_table_size = ICE_VSIQF_HLUT_ARRAY_SIZE; |
| vsi->rss_size = ICE_MAX_RSS_QS_PER_VF; |
| vsi->rss_lut_type = ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI; |
| break; |
| case ICE_VSI_LB: |
| break; |
| default: |
| dev_dbg(ice_pf_to_dev(pf), "Unsupported VSI type %s\n", |
| ice_vsi_type_str(vsi->type)); |
| break; |
| } |
| } |
| |
| /** |
| * ice_set_dflt_vsi_ctx - Set default VSI context before adding a VSI |
| * @ctxt: the VSI context being set |
| * |
| * This initializes a default VSI context for all sections except the Queues. |
| */ |
| static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt) |
| { |
| u32 table = 0; |
| |
| memset(&ctxt->info, 0, sizeof(ctxt->info)); |
| /* VSI's should be allocated from shared pool */ |
| ctxt->alloc_from_pool = true; |
| /* Src pruning enabled by default */ |
| ctxt->info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; |
| /* Traffic from VSI can be sent to LAN */ |
| ctxt->info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; |
| /* By default bits 3 and 4 in vlan_flags are 0's which results in legacy |
| * behavior (show VLAN, DEI, and UP) in descriptor. Also, allow all |
| * packets untagged/tagged. |
| */ |
| ctxt->info.vlan_flags = ((ICE_AQ_VSI_VLAN_MODE_ALL & |
| ICE_AQ_VSI_VLAN_MODE_M) >> |
| ICE_AQ_VSI_VLAN_MODE_S); |
| /* Have 1:1 UP mapping for both ingress/egress tables */ |
| table |= ICE_UP_TABLE_TRANSLATE(0, 0); |
| table |= ICE_UP_TABLE_TRANSLATE(1, 1); |
| table |= ICE_UP_TABLE_TRANSLATE(2, 2); |
| table |= ICE_UP_TABLE_TRANSLATE(3, 3); |
| table |= ICE_UP_TABLE_TRANSLATE(4, 4); |
| table |= ICE_UP_TABLE_TRANSLATE(5, 5); |
| table |= ICE_UP_TABLE_TRANSLATE(6, 6); |
| table |= ICE_UP_TABLE_TRANSLATE(7, 7); |
| ctxt->info.ingress_table = cpu_to_le32(table); |
| ctxt->info.egress_table = cpu_to_le32(table); |
| /* Have 1:1 UP mapping for outer to inner UP table */ |
| ctxt->info.outer_up_table = cpu_to_le32(table); |
| /* No Outer tag support outer_tag_flags remains to zero */ |
| } |
| |
| /** |
| * ice_vsi_setup_q_map - Setup a VSI queue map |
| * @vsi: the VSI being configured |
| * @ctxt: VSI context structure |
| */ |
| static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) |
| { |
| u16 offset = 0, qmap = 0, tx_count = 0, pow = 0; |
| u16 num_txq_per_tc, num_rxq_per_tc; |
| u16 qcount_tx = vsi->alloc_txq; |
| u16 qcount_rx = vsi->alloc_rxq; |
| u8 netdev_tc = 0; |
| int i; |
| |
| if (!vsi->tc_cfg.numtc) { |
| /* at least TC0 should be enabled by default */ |
| vsi->tc_cfg.numtc = 1; |
| vsi->tc_cfg.ena_tc = 1; |
| } |
| |
| num_rxq_per_tc = min_t(u16, qcount_rx / vsi->tc_cfg.numtc, ICE_MAX_RXQS_PER_TC); |
| if (!num_rxq_per_tc) |
| num_rxq_per_tc = 1; |
| num_txq_per_tc = qcount_tx / vsi->tc_cfg.numtc; |
| if (!num_txq_per_tc) |
| num_txq_per_tc = 1; |
| |
| /* find the (rounded up) power-of-2 of qcount */ |
| pow = (u16)order_base_2(num_rxq_per_tc); |
| |
| /* TC mapping is a function of the number of Rx queues assigned to the |
| * VSI for each traffic class and the offset of these queues. |
| * The first 10 bits are for queue offset for TC0, next 4 bits for no:of |
| * queues allocated to TC0. No:of queues is a power-of-2. |
| * |
| * If TC is not enabled, the queue offset is set to 0, and allocate one |
| * queue, this way, traffic for the given TC will be sent to the default |
| * queue. |
| * |
| * Setup number and offset of Rx queues for all TCs for the VSI |
| */ |
| ice_for_each_traffic_class(i) { |
| if (!(vsi->tc_cfg.ena_tc & BIT(i))) { |
| /* TC is not enabled */ |
| vsi->tc_cfg.tc_info[i].qoffset = 0; |
| vsi->tc_cfg.tc_info[i].qcount_rx = 1; |
| vsi->tc_cfg.tc_info[i].qcount_tx = 1; |
| vsi->tc_cfg.tc_info[i].netdev_tc = 0; |
| ctxt->info.tc_mapping[i] = 0; |
| continue; |
| } |
| |
| /* TC is enabled */ |
| vsi->tc_cfg.tc_info[i].qoffset = offset; |
| vsi->tc_cfg.tc_info[i].qcount_rx = num_rxq_per_tc; |
| vsi->tc_cfg.tc_info[i].qcount_tx = num_txq_per_tc; |
| vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; |
| |
| qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & |
| ICE_AQ_VSI_TC_Q_OFFSET_M) | |
| ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & |
| ICE_AQ_VSI_TC_Q_NUM_M); |
| offset += num_rxq_per_tc; |
| tx_count += num_txq_per_tc; |
| ctxt->info.tc_mapping[i] = cpu_to_le16(qmap); |
| } |
| |
| /* if offset is non-zero, means it is calculated correctly based on |
| * enabled TCs for a given VSI otherwise qcount_rx will always |
| * be correct and non-zero because it is based off - VSI's |
| * allocated Rx queues which is at least 1 (hence qcount_tx will be |
| * at least 1) |
| */ |
| if (offset) |
| vsi->num_rxq = offset; |
| else |
| vsi->num_rxq = num_rxq_per_tc; |
| |
| vsi->num_txq = tx_count; |
| |
| if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) { |
| dev_dbg(ice_pf_to_dev(vsi->back), "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n"); |
| /* since there is a chance that num_rxq could have been changed |
| * in the above for loop, make num_txq equal to num_rxq. |
| */ |
| vsi->num_txq = vsi->num_rxq; |
| } |
| |
| /* Rx queue mapping */ |
| ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); |
| /* q_mapping buffer holds the info for the first queue allocated for |
| * this VSI in the PF space and also the number of queues associated |
| * with this VSI. |
| */ |
| ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); |
| ctxt->info.q_mapping[1] = cpu_to_le16(vsi->num_rxq); |
| } |
| |
| /** |
| * ice_set_fd_vsi_ctx - Set FD VSI context before adding a VSI |
| * @ctxt: the VSI context being set |
| * @vsi: the VSI being configured |
| */ |
| static void ice_set_fd_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) |
| { |
| u8 dflt_q_group, dflt_q_prio; |
| u16 dflt_q, report_q, val; |
| |
| if (vsi->type != ICE_VSI_PF && vsi->type != ICE_VSI_CTRL && |
| vsi->type != ICE_VSI_VF) |
| return; |
| |
| val = ICE_AQ_VSI_PROP_FLOW_DIR_VALID; |
| ctxt->info.valid_sections |= cpu_to_le16(val); |
| dflt_q = 0; |
| dflt_q_group = 0; |
| report_q = 0; |
| dflt_q_prio = 0; |
| |
| /* enable flow director filtering/programming */ |
| val = ICE_AQ_VSI_FD_ENABLE | ICE_AQ_VSI_FD_PROG_ENABLE; |
| ctxt->info.fd_options = cpu_to_le16(val); |
| /* max of allocated flow director filters */ |
| ctxt->info.max_fd_fltr_dedicated = |
| cpu_to_le16(vsi->num_gfltr); |
| /* max of shared flow director filters any VSI may program */ |
| ctxt->info.max_fd_fltr_shared = |
| cpu_to_le16(vsi->num_bfltr); |
| /* default queue index within the VSI of the default FD */ |
| val = ((dflt_q << ICE_AQ_VSI_FD_DEF_Q_S) & |
| ICE_AQ_VSI_FD_DEF_Q_M); |
| /* target queue or queue group to the FD filter */ |
| val |= ((dflt_q_group << ICE_AQ_VSI_FD_DEF_GRP_S) & |
| ICE_AQ_VSI_FD_DEF_GRP_M); |
| ctxt->info.fd_def_q = cpu_to_le16(val); |
| /* queue index on which FD filter completion is reported */ |
| val = ((report_q << ICE_AQ_VSI_FD_REPORT_Q_S) & |
| ICE_AQ_VSI_FD_REPORT_Q_M); |
| /* priority of the default qindex action */ |
| val |= ((dflt_q_prio << ICE_AQ_VSI_FD_DEF_PRIORITY_S) & |
| ICE_AQ_VSI_FD_DEF_PRIORITY_M); |
| ctxt->info.fd_report_opt = cpu_to_le16(val); |
| } |
| |
| /** |
| * ice_set_rss_vsi_ctx - Set RSS VSI context before adding a VSI |
| * @ctxt: the VSI context being set |
| * @vsi: the VSI being configured |
| */ |
| static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) |
| { |
| u8 lut_type, hash_type; |
| struct device *dev; |
| struct ice_pf *pf; |
| |
| pf = vsi->back; |
| dev = ice_pf_to_dev(pf); |
| |
| switch (vsi->type) { |
| case ICE_VSI_CHNL: |
| case ICE_VSI_PF: |
| /* PF VSI will inherit RSS instance of PF */ |
| lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_PF; |
| hash_type = ICE_AQ_VSI_Q_OPT_RSS_TPLZ; |
| break; |
| case ICE_VSI_VF: |
| /* VF VSI will gets a small RSS table which is a VSI LUT type */ |
| lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; |
| hash_type = ICE_AQ_VSI_Q_OPT_RSS_TPLZ; |
| break; |
| default: |
| dev_dbg(dev, "Unsupported VSI type %s\n", |
| ice_vsi_type_str(vsi->type)); |
| return; |
| } |
| |
| ctxt->info.q_opt_rss = ((lut_type << ICE_AQ_VSI_Q_OPT_RSS_LUT_S) & |
| ICE_AQ_VSI_Q_OPT_RSS_LUT_M) | |
| ((hash_type << ICE_AQ_VSI_Q_OPT_RSS_HASH_S) & |
| ICE_AQ_VSI_Q_OPT_RSS_HASH_M); |
| } |
| |
| static void |
| ice_chnl_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) |
| { |
| struct ice_pf *pf = vsi->back; |
| u16 qcount, qmap; |
| u8 offset = 0; |
| int pow; |
| |
| qcount = min_t(int, vsi->num_rxq, pf->num_lan_msix); |
| |
| pow = order_base_2(qcount); |
| qmap = ((offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & |
| ICE_AQ_VSI_TC_Q_OFFSET_M) | |
| ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & |
| ICE_AQ_VSI_TC_Q_NUM_M); |
| |
| ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); |
| ctxt->info.mapping_flags |= cpu_to_le16(ICE_AQ_VSI_Q_MAP_CONTIG); |
| ctxt->info.q_mapping[0] = cpu_to_le16(vsi->next_base_q); |
| ctxt->info.q_mapping[1] = cpu_to_le16(qcount); |
| } |
| |
| /** |
| * ice_vsi_init - Create and initialize a VSI |
| * @vsi: the VSI being configured |
| * @init_vsi: is this call creating a VSI |
| * |
| * This initializes a VSI context depending on the VSI type to be added and |
| * passes it down to the add_vsi aq command to create a new VSI. |
| */ |
| static int ice_vsi_init(struct ice_vsi *vsi, bool init_vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| struct ice_vsi_ctx *ctxt; |
| struct device *dev; |
| int ret = 0; |
| |
| dev = ice_pf_to_dev(pf); |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return -ENOMEM; |
| |
| switch (vsi->type) { |
| case ICE_VSI_CTRL: |
| case ICE_VSI_LB: |
| case ICE_VSI_PF: |
| ctxt->flags = ICE_AQ_VSI_TYPE_PF; |
| break; |
| case ICE_VSI_SWITCHDEV_CTRL: |
| case ICE_VSI_CHNL: |
| ctxt->flags = ICE_AQ_VSI_TYPE_VMDQ2; |
| break; |
| case ICE_VSI_VF: |
| ctxt->flags = ICE_AQ_VSI_TYPE_VF; |
| /* VF number here is the absolute VF number (0-255) */ |
| ctxt->vf_num = vsi->vf_id + hw->func_caps.vf_base_id; |
| break; |
| default: |
| ret = -ENODEV; |
| goto out; |
| } |
| |
| /* Handle VLAN pruning for channel VSI if main VSI has VLAN |
| * prune enabled |
| */ |
| if (vsi->type == ICE_VSI_CHNL) { |
| struct ice_vsi *main_vsi; |
| |
| main_vsi = ice_get_main_vsi(pf); |
| if (main_vsi && ice_vsi_is_vlan_pruning_ena(main_vsi)) |
| ctxt->info.sw_flags2 |= |
| ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; |
| else |
| ctxt->info.sw_flags2 &= |
| ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; |
| } |
| |
| ice_set_dflt_vsi_ctx(ctxt); |
| if (test_bit(ICE_FLAG_FD_ENA, pf->flags)) |
| ice_set_fd_vsi_ctx(ctxt, vsi); |
| /* if the switch is in VEB mode, allow VSI loopback */ |
| if (vsi->vsw->bridge_mode == BRIDGE_MODE_VEB) |
| ctxt->info.sw_flags |= ICE_AQ_VSI_SW_FLAG_ALLOW_LB; |
| |
| /* Set LUT type and HASH type if RSS is enabled */ |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags) && |
| vsi->type != ICE_VSI_CTRL) { |
| ice_set_rss_vsi_ctx(ctxt, vsi); |
| /* if updating VSI context, make sure to set valid_section: |
| * to indicate which section of VSI context being updated |
| */ |
| if (!init_vsi) |
| ctxt->info.valid_sections |= |
| cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); |
| } |
| |
| ctxt->info.sw_id = vsi->port_info->sw_id; |
| if (vsi->type == ICE_VSI_CHNL) { |
| ice_chnl_vsi_setup_q_map(vsi, ctxt); |
| } else { |
| ice_vsi_setup_q_map(vsi, ctxt); |
| if (!init_vsi) /* means VSI being updated */ |
| /* must to indicate which section of VSI context are |
| * being modified |
| */ |
| ctxt->info.valid_sections |= |
| cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); |
| } |
| |
| /* enable/disable MAC and VLAN anti-spoof when spoofchk is on/off |
| * respectively |
| */ |
| if (vsi->type == ICE_VSI_VF) { |
| ctxt->info.valid_sections |= |
| cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); |
| if (pf->vf[vsi->vf_id].spoofchk) { |
| ctxt->info.sec_flags |= |
| ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF | |
| (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << |
| ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); |
| } else { |
| ctxt->info.sec_flags &= |
| ~(ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF | |
| (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << |
| ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S)); |
| } |
| } |
| |
| /* Allow control frames out of main VSI */ |
| if (vsi->type == ICE_VSI_PF) { |
| ctxt->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; |
| ctxt->info.valid_sections |= |
| cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); |
| } |
| |
| if (init_vsi) { |
| ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL); |
| if (ret) { |
| dev_err(dev, "Add VSI failed, err %d\n", ret); |
| ret = -EIO; |
| goto out; |
| } |
| } else { |
| ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); |
| if (ret) { |
| dev_err(dev, "Update VSI failed, err %d\n", ret); |
| ret = -EIO; |
| goto out; |
| } |
| } |
| |
| /* keep context for update VSI operations */ |
| vsi->info = ctxt->info; |
| |
| /* record VSI number returned */ |
| vsi->vsi_num = ctxt->vsi_num; |
| |
| out: |
| kfree(ctxt); |
| return ret; |
| } |
| |
| /** |
| * ice_free_res - free a block of resources |
| * @res: pointer to the resource |
| * @index: starting index previously returned by ice_get_res |
| * @id: identifier to track owner |
| * |
| * Returns number of resources freed |
| */ |
| int ice_free_res(struct ice_res_tracker *res, u16 index, u16 id) |
| { |
| int count = 0; |
| int i; |
| |
| if (!res || index >= res->end) |
| return -EINVAL; |
| |
| id |= ICE_RES_VALID_BIT; |
| for (i = index; i < res->end && res->list[i] == id; i++) { |
| res->list[i] = 0; |
| count++; |
| } |
| |
| return count; |
| } |
| |
| /** |
| * ice_search_res - Search the tracker for a block of resources |
| * @res: pointer to the resource |
| * @needed: size of the block needed |
| * @id: identifier to track owner |
| * |
| * Returns the base item index of the block, or -ENOMEM for error |
| */ |
| static int ice_search_res(struct ice_res_tracker *res, u16 needed, u16 id) |
| { |
| u16 start = 0, end = 0; |
| |
| if (needed > res->end) |
| return -ENOMEM; |
| |
| id |= ICE_RES_VALID_BIT; |
| |
| do { |
| /* skip already allocated entries */ |
| if (res->list[end++] & ICE_RES_VALID_BIT) { |
| start = end; |
| if ((start + needed) > res->end) |
| break; |
| } |
| |
| if (end == (start + needed)) { |
| int i = start; |
| |
| /* there was enough, so assign it to the requestor */ |
| while (i != end) |
| res->list[i++] = id; |
| |
| return start; |
| } |
| } while (end < res->end); |
| |
| return -ENOMEM; |
| } |
| |
| /** |
| * ice_get_free_res_count - Get free count from a resource tracker |
| * @res: Resource tracker instance |
| */ |
| static u16 ice_get_free_res_count(struct ice_res_tracker *res) |
| { |
| u16 i, count = 0; |
| |
| for (i = 0; i < res->end; i++) |
| if (!(res->list[i] & ICE_RES_VALID_BIT)) |
| count++; |
| |
| return count; |
| } |
| |
| /** |
| * ice_get_res - get a block of resources |
| * @pf: board private structure |
| * @res: pointer to the resource |
| * @needed: size of the block needed |
| * @id: identifier to track owner |
| * |
| * Returns the base item index of the block, or negative for error |
| */ |
| int |
| ice_get_res(struct ice_pf *pf, struct ice_res_tracker *res, u16 needed, u16 id) |
| { |
| if (!res || !pf) |
| return -EINVAL; |
| |
| if (!needed || needed > res->num_entries || id >= ICE_RES_VALID_BIT) { |
| dev_err(ice_pf_to_dev(pf), "param err: needed=%d, num_entries = %d id=0x%04x\n", |
| needed, res->num_entries, id); |
| return -EINVAL; |
| } |
| |
| return ice_search_res(res, needed, id); |
| } |
| |
| /** |
| * ice_vsi_setup_vector_base - Set up the base vector for the given VSI |
| * @vsi: ptr to the VSI |
| * |
| * This should only be called after ice_vsi_alloc() which allocates the |
| * corresponding SW VSI structure and initializes num_queue_pairs for the |
| * newly allocated VSI. |
| * |
| * Returns 0 on success or negative on failure |
| */ |
| static int ice_vsi_setup_vector_base(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| u16 num_q_vectors; |
| int base; |
| |
| dev = ice_pf_to_dev(pf); |
| /* SRIOV doesn't grab irq_tracker entries for each VSI */ |
| if (vsi->type == ICE_VSI_VF) |
| return 0; |
| if (vsi->type == ICE_VSI_CHNL) |
| return 0; |
| |
| if (vsi->base_vector) { |
| dev_dbg(dev, "VSI %d has non-zero base vector %d\n", |
| vsi->vsi_num, vsi->base_vector); |
| return -EEXIST; |
| } |
| |
| num_q_vectors = vsi->num_q_vectors; |
| /* reserve slots from OS requested IRQs */ |
| if (vsi->type == ICE_VSI_CTRL && vsi->vf_id != ICE_INVAL_VFID) { |
| int i; |
| |
| ice_for_each_vf(pf, i) { |
| struct ice_vf *vf = &pf->vf[i]; |
| |
| if (i != vsi->vf_id && vf->ctrl_vsi_idx != ICE_NO_VSI) { |
| base = pf->vsi[vf->ctrl_vsi_idx]->base_vector; |
| break; |
| } |
| } |
| if (i == pf->num_alloc_vfs) |
| base = ice_get_res(pf, pf->irq_tracker, num_q_vectors, |
| ICE_RES_VF_CTRL_VEC_ID); |
| } else { |
| base = ice_get_res(pf, pf->irq_tracker, num_q_vectors, |
| vsi->idx); |
| } |
| |
| if (base < 0) { |
| dev_err(dev, "%d MSI-X interrupts available. %s %d failed to get %d MSI-X vectors\n", |
| ice_get_free_res_count(pf->irq_tracker), |
| ice_vsi_type_str(vsi->type), vsi->idx, num_q_vectors); |
| return -ENOENT; |
| } |
| vsi->base_vector = (u16)base; |
| pf->num_avail_sw_msix -= num_q_vectors; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_clear_rings - Deallocates the Tx and Rx rings for VSI |
| * @vsi: the VSI having rings deallocated |
| */ |
| static void ice_vsi_clear_rings(struct ice_vsi *vsi) |
| { |
| int i; |
| |
| /* Avoid stale references by clearing map from vector to ring */ |
| if (vsi->q_vectors) { |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| |
| if (q_vector) { |
| q_vector->tx.tx_ring = NULL; |
| q_vector->rx.rx_ring = NULL; |
| } |
| } |
| } |
| |
| if (vsi->tx_rings) { |
| ice_for_each_alloc_txq(vsi, i) { |
| if (vsi->tx_rings[i]) { |
| kfree_rcu(vsi->tx_rings[i], rcu); |
| WRITE_ONCE(vsi->tx_rings[i], NULL); |
| } |
| } |
| } |
| if (vsi->rx_rings) { |
| ice_for_each_alloc_rxq(vsi, i) { |
| if (vsi->rx_rings[i]) { |
| kfree_rcu(vsi->rx_rings[i], rcu); |
| WRITE_ONCE(vsi->rx_rings[i], NULL); |
| } |
| } |
| } |
| } |
| |
| /** |
| * ice_vsi_alloc_rings - Allocates Tx and Rx rings for the VSI |
| * @vsi: VSI which is having rings allocated |
| */ |
| static int ice_vsi_alloc_rings(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| u16 i; |
| |
| dev = ice_pf_to_dev(pf); |
| /* Allocate Tx rings */ |
| ice_for_each_alloc_txq(vsi, i) { |
| struct ice_tx_ring *ring; |
| |
| /* allocate with kzalloc(), free with kfree_rcu() */ |
| ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
| |
| if (!ring) |
| goto err_out; |
| |
| ring->q_index = i; |
| ring->reg_idx = vsi->txq_map[i]; |
| ring->vsi = vsi; |
| ring->tx_tstamps = &pf->ptp.port.tx; |
| ring->dev = dev; |
| ring->count = vsi->num_tx_desc; |
| WRITE_ONCE(vsi->tx_rings[i], ring); |
| } |
| |
| /* Allocate Rx rings */ |
| ice_for_each_alloc_rxq(vsi, i) { |
| struct ice_rx_ring *ring; |
| |
| /* allocate with kzalloc(), free with kfree_rcu() */ |
| ring = kzalloc(sizeof(*ring), GFP_KERNEL); |
| if (!ring) |
| goto err_out; |
| |
| ring->q_index = i; |
| ring->reg_idx = vsi->rxq_map[i]; |
| ring->vsi = vsi; |
| ring->netdev = vsi->netdev; |
| ring->dev = dev; |
| ring->count = vsi->num_rx_desc; |
| WRITE_ONCE(vsi->rx_rings[i], ring); |
| } |
| |
| return 0; |
| |
| err_out: |
| ice_vsi_clear_rings(vsi); |
| return -ENOMEM; |
| } |
| |
| /** |
| * ice_vsi_manage_rss_lut - disable/enable RSS |
| * @vsi: the VSI being changed |
| * @ena: boolean value indicating if this is an enable or disable request |
| * |
| * In the event of disable request for RSS, this function will zero out RSS |
| * LUT, while in the event of enable request for RSS, it will reconfigure RSS |
| * LUT. |
| */ |
| void ice_vsi_manage_rss_lut(struct ice_vsi *vsi, bool ena) |
| { |
| u8 *lut; |
| |
| lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); |
| if (!lut) |
| return; |
| |
| if (ena) { |
| if (vsi->rss_lut_user) |
| memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); |
| else |
| ice_fill_rss_lut(lut, vsi->rss_table_size, |
| vsi->rss_size); |
| } |
| |
| ice_set_rss_lut(vsi, lut, vsi->rss_table_size); |
| kfree(lut); |
| } |
| |
| /** |
| * ice_vsi_cfg_rss_lut_key - Configure RSS params for a VSI |
| * @vsi: VSI to be configured |
| */ |
| int ice_vsi_cfg_rss_lut_key(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| u8 *lut, *key; |
| int err; |
| |
| dev = ice_pf_to_dev(pf); |
| if (vsi->type == ICE_VSI_PF && vsi->ch_rss_size && |
| (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags))) { |
| vsi->rss_size = min_t(u16, vsi->rss_size, vsi->ch_rss_size); |
| } else { |
| vsi->rss_size = min_t(u16, vsi->rss_size, vsi->num_rxq); |
| |
| /* If orig_rss_size is valid and it is less than determined |
| * main VSI's rss_size, update main VSI's rss_size to be |
| * orig_rss_size so that when tc-qdisc is deleted, main VSI |
| * RSS table gets programmed to be correct (whatever it was |
| * to begin with (prior to setup-tc for ADQ config) |
| */ |
| if (vsi->orig_rss_size && vsi->rss_size < vsi->orig_rss_size && |
| vsi->orig_rss_size <= vsi->num_rxq) { |
| vsi->rss_size = vsi->orig_rss_size; |
| /* now orig_rss_size is used, reset it to zero */ |
| vsi->orig_rss_size = 0; |
| } |
| } |
| |
| lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); |
| if (!lut) |
| return -ENOMEM; |
| |
| if (vsi->rss_lut_user) |
| memcpy(lut, vsi->rss_lut_user, vsi->rss_table_size); |
| else |
| ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); |
| |
| err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size); |
| if (err) { |
| dev_err(dev, "set_rss_lut failed, error %d\n", err); |
| goto ice_vsi_cfg_rss_exit; |
| } |
| |
| key = kzalloc(ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE, GFP_KERNEL); |
| if (!key) { |
| err = -ENOMEM; |
| goto ice_vsi_cfg_rss_exit; |
| } |
| |
| if (vsi->rss_hkey_user) |
| memcpy(key, vsi->rss_hkey_user, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); |
| else |
| netdev_rss_key_fill((void *)key, ICE_GET_SET_RSS_KEY_EXTEND_KEY_SIZE); |
| |
| err = ice_set_rss_key(vsi, key); |
| if (err) |
| dev_err(dev, "set_rss_key failed, error %d\n", err); |
| |
| kfree(key); |
| ice_vsi_cfg_rss_exit: |
| kfree(lut); |
| return err; |
| } |
| |
| /** |
| * ice_vsi_set_vf_rss_flow_fld - Sets VF VSI RSS input set for different flows |
| * @vsi: VSI to be configured |
| * |
| * This function will only be called during the VF VSI setup. Upon successful |
| * completion of package download, this function will configure default RSS |
| * input sets for VF VSI. |
| */ |
| static void ice_vsi_set_vf_rss_flow_fld(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int status; |
| |
| dev = ice_pf_to_dev(pf); |
| if (ice_is_safe_mode(pf)) { |
| dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", |
| vsi->vsi_num); |
| return; |
| } |
| |
| status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, ICE_DEFAULT_RSS_HENA); |
| if (status) |
| dev_dbg(dev, "ice_add_avf_rss_cfg failed for vsi = %d, error = %d\n", |
| vsi->vsi_num, status); |
| } |
| |
| /** |
| * ice_vsi_set_rss_flow_fld - Sets RSS input set for different flows |
| * @vsi: VSI to be configured |
| * |
| * This function will only be called after successful download package call |
| * during initialization of PF. Since the downloaded package will erase the |
| * RSS section, this function will configure RSS input sets for different |
| * flow types. The last profile added has the highest priority, therefore 2 |
| * tuple profiles (i.e. IPv4 src/dst) are added before 4 tuple profiles |
| * (i.e. IPv4 src/dst TCP src/dst port). |
| */ |
| static void ice_vsi_set_rss_flow_fld(struct ice_vsi *vsi) |
| { |
| u16 vsi_handle = vsi->idx, vsi_num = vsi->vsi_num; |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| struct device *dev; |
| int status; |
| |
| dev = ice_pf_to_dev(pf); |
| if (ice_is_safe_mode(pf)) { |
| dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", |
| vsi_num); |
| return; |
| } |
| /* configure RSS for IPv4 with input set IP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, |
| ICE_FLOW_SEG_HDR_IPV4); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for ipv4 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for IPv6 with input set IPv6 src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, |
| ICE_FLOW_SEG_HDR_IPV6); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for ipv6 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for tcp4 with input set IP src/dst, TCP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV4, |
| ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for tcp4 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for udp4 with input set IP src/dst, UDP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV4, |
| ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for udp4 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for sctp4 with input set IP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV4, |
| ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for sctp4 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for tcp6 with input set IPv6 src/dst, TCP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_TCP_IPV6, |
| ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for tcp6 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for udp6 with input set IPv6 src/dst, UDP src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_HASH_UDP_IPV6, |
| ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for udp6 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| |
| /* configure RSS for sctp6 with input set IPv6 src/dst */ |
| status = ice_add_rss_cfg(hw, vsi_handle, ICE_FLOW_HASH_IPV6, |
| ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6); |
| if (status) |
| dev_dbg(dev, "ice_add_rss_cfg failed for sctp6 flow, vsi = %d, error = %d\n", |
| vsi_num, status); |
| } |
| |
| /** |
| * ice_pf_state_is_nominal - checks the PF for nominal state |
| * @pf: pointer to PF to check |
| * |
| * Check the PF's state for a collection of bits that would indicate |
| * the PF is in a state that would inhibit normal operation for |
| * driver functionality. |
| * |
| * Returns true if PF is in a nominal state, false otherwise |
| */ |
| bool ice_pf_state_is_nominal(struct ice_pf *pf) |
| { |
| DECLARE_BITMAP(check_bits, ICE_STATE_NBITS) = { 0 }; |
| |
| if (!pf) |
| return false; |
| |
| bitmap_set(check_bits, 0, ICE_STATE_NOMINAL_CHECK_BITS); |
| if (bitmap_intersects(pf->state, check_bits, ICE_STATE_NBITS)) |
| return false; |
| |
| return true; |
| } |
| |
| /** |
| * ice_update_eth_stats - Update VSI-specific ethernet statistics counters |
| * @vsi: the VSI to be updated |
| */ |
| void ice_update_eth_stats(struct ice_vsi *vsi) |
| { |
| struct ice_eth_stats *prev_es, *cur_es; |
| struct ice_hw *hw = &vsi->back->hw; |
| u16 vsi_num = vsi->vsi_num; /* HW absolute index of a VSI */ |
| |
| prev_es = &vsi->eth_stats_prev; |
| cur_es = &vsi->eth_stats; |
| |
| ice_stat_update40(hw, GLV_GORCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->rx_bytes, &cur_es->rx_bytes); |
| |
| ice_stat_update40(hw, GLV_UPRCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->rx_unicast, &cur_es->rx_unicast); |
| |
| ice_stat_update40(hw, GLV_MPRCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->rx_multicast, &cur_es->rx_multicast); |
| |
| ice_stat_update40(hw, GLV_BPRCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->rx_broadcast, &cur_es->rx_broadcast); |
| |
| ice_stat_update32(hw, GLV_RDPC(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->rx_discards, &cur_es->rx_discards); |
| |
| ice_stat_update40(hw, GLV_GOTCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->tx_bytes, &cur_es->tx_bytes); |
| |
| ice_stat_update40(hw, GLV_UPTCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->tx_unicast, &cur_es->tx_unicast); |
| |
| ice_stat_update40(hw, GLV_MPTCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->tx_multicast, &cur_es->tx_multicast); |
| |
| ice_stat_update40(hw, GLV_BPTCL(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->tx_broadcast, &cur_es->tx_broadcast); |
| |
| ice_stat_update32(hw, GLV_TEPC(vsi_num), vsi->stat_offsets_loaded, |
| &prev_es->tx_errors, &cur_es->tx_errors); |
| |
| vsi->stat_offsets_loaded = true; |
| } |
| |
| /** |
| * ice_vsi_add_vlan - Add VSI membership for given VLAN |
| * @vsi: the VSI being configured |
| * @vid: VLAN ID to be added |
| * @action: filter action to be performed on match |
| */ |
| int |
| ice_vsi_add_vlan(struct ice_vsi *vsi, u16 vid, enum ice_sw_fwd_act_type action) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int err = 0; |
| |
| dev = ice_pf_to_dev(pf); |
| |
| if (!ice_fltr_add_vlan(vsi, vid, action)) { |
| vsi->num_vlan++; |
| } else { |
| err = -ENODEV; |
| dev_err(dev, "Failure Adding VLAN %d on VSI %i\n", vid, |
| vsi->vsi_num); |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ice_vsi_kill_vlan - Remove VSI membership for a given VLAN |
| * @vsi: the VSI being configured |
| * @vid: VLAN ID to be removed |
| * |
| * Returns 0 on success and negative on failure |
| */ |
| int ice_vsi_kill_vlan(struct ice_vsi *vsi, u16 vid) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int err; |
| |
| dev = ice_pf_to_dev(pf); |
| |
| err = ice_fltr_remove_vlan(vsi, vid, ICE_FWD_TO_VSI); |
| if (!err) { |
| vsi->num_vlan--; |
| } else if (err == -ENOENT) { |
| dev_dbg(dev, "Failed to remove VLAN %d on VSI %i, it does not exist, error: %d\n", |
| vid, vsi->vsi_num, err); |
| err = 0; |
| } else { |
| dev_err(dev, "Error removing VLAN %d on vsi %i error: %d\n", |
| vid, vsi->vsi_num, err); |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ice_vsi_cfg_frame_size - setup max frame size and Rx buffer length |
| * @vsi: VSI |
| */ |
| void ice_vsi_cfg_frame_size(struct ice_vsi *vsi) |
| { |
| if (!vsi->netdev || test_bit(ICE_FLAG_LEGACY_RX, vsi->back->flags)) { |
| vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX; |
| vsi->rx_buf_len = ICE_RXBUF_2048; |
| #if (PAGE_SIZE < 8192) |
| } else if (!ICE_2K_TOO_SMALL_WITH_PADDING && |
| (vsi->netdev->mtu <= ETH_DATA_LEN)) { |
| vsi->max_frame = ICE_RXBUF_1536 - NET_IP_ALIGN; |
| vsi->rx_buf_len = ICE_RXBUF_1536 - NET_IP_ALIGN; |
| #endif |
| } else { |
| vsi->max_frame = ICE_AQ_SET_MAC_FRAME_SIZE_MAX; |
| #if (PAGE_SIZE < 8192) |
| vsi->rx_buf_len = ICE_RXBUF_3072; |
| #else |
| vsi->rx_buf_len = ICE_RXBUF_2048; |
| #endif |
| } |
| } |
| |
| /** |
| * ice_write_qrxflxp_cntxt - write/configure QRXFLXP_CNTXT register |
| * @hw: HW pointer |
| * @pf_q: index of the Rx queue in the PF's queue space |
| * @rxdid: flexible descriptor RXDID |
| * @prio: priority for the RXDID for this queue |
| * @ena_ts: true to enable timestamp and false to disable timestamp |
| */ |
| void |
| ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio, |
| bool ena_ts) |
| { |
| int regval = rd32(hw, QRXFLXP_CNTXT(pf_q)); |
| |
| /* clear any previous values */ |
| regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M | |
| QRXFLXP_CNTXT_RXDID_PRIO_M | |
| QRXFLXP_CNTXT_TS_M); |
| |
| regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) & |
| QRXFLXP_CNTXT_RXDID_IDX_M; |
| |
| regval |= (prio << QRXFLXP_CNTXT_RXDID_PRIO_S) & |
| QRXFLXP_CNTXT_RXDID_PRIO_M; |
| |
| if (ena_ts) |
| /* Enable TimeSync on this queue */ |
| regval |= QRXFLXP_CNTXT_TS_M; |
| |
| wr32(hw, QRXFLXP_CNTXT(pf_q), regval); |
| } |
| |
| int ice_vsi_cfg_single_rxq(struct ice_vsi *vsi, u16 q_idx) |
| { |
| if (q_idx >= vsi->num_rxq) |
| return -EINVAL; |
| |
| return ice_vsi_cfg_rxq(vsi->rx_rings[q_idx]); |
| } |
| |
| int ice_vsi_cfg_single_txq(struct ice_vsi *vsi, struct ice_tx_ring **tx_rings, u16 q_idx) |
| { |
| struct ice_aqc_add_tx_qgrp *qg_buf; |
| int err; |
| |
| if (q_idx >= vsi->alloc_txq || !tx_rings || !tx_rings[q_idx]) |
| return -EINVAL; |
| |
| qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); |
| if (!qg_buf) |
| return -ENOMEM; |
| |
| qg_buf->num_txqs = 1; |
| |
| err = ice_vsi_cfg_txq(vsi, tx_rings[q_idx], qg_buf); |
| kfree(qg_buf); |
| return err; |
| } |
| |
| /** |
| * ice_vsi_cfg_rxqs - Configure the VSI for Rx |
| * @vsi: the VSI being configured |
| * |
| * Return 0 on success and a negative value on error |
| * Configure the Rx VSI for operation. |
| */ |
| int ice_vsi_cfg_rxqs(struct ice_vsi *vsi) |
| { |
| u16 i; |
| |
| if (vsi->type == ICE_VSI_VF) |
| goto setup_rings; |
| |
| ice_vsi_cfg_frame_size(vsi); |
| setup_rings: |
| /* set up individual rings */ |
| ice_for_each_rxq(vsi, i) { |
| int err = ice_vsi_cfg_rxq(vsi->rx_rings[i]); |
| |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_cfg_txqs - Configure the VSI for Tx |
| * @vsi: the VSI being configured |
| * @rings: Tx ring array to be configured |
| * @count: number of Tx ring array elements |
| * |
| * Return 0 on success and a negative value on error |
| * Configure the Tx VSI for operation. |
| */ |
| static int |
| ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_tx_ring **rings, u16 count) |
| { |
| struct ice_aqc_add_tx_qgrp *qg_buf; |
| u16 q_idx = 0; |
| int err = 0; |
| |
| qg_buf = kzalloc(struct_size(qg_buf, txqs, 1), GFP_KERNEL); |
| if (!qg_buf) |
| return -ENOMEM; |
| |
| qg_buf->num_txqs = 1; |
| |
| for (q_idx = 0; q_idx < count; q_idx++) { |
| err = ice_vsi_cfg_txq(vsi, rings[q_idx], qg_buf); |
| if (err) |
| goto err_cfg_txqs; |
| } |
| |
| err_cfg_txqs: |
| kfree(qg_buf); |
| return err; |
| } |
| |
| /** |
| * ice_vsi_cfg_lan_txqs - Configure the VSI for Tx |
| * @vsi: the VSI being configured |
| * |
| * Return 0 on success and a negative value on error |
| * Configure the Tx VSI for operation. |
| */ |
| int ice_vsi_cfg_lan_txqs(struct ice_vsi *vsi) |
| { |
| return ice_vsi_cfg_txqs(vsi, vsi->tx_rings, vsi->num_txq); |
| } |
| |
| /** |
| * ice_vsi_cfg_xdp_txqs - Configure Tx queues dedicated for XDP in given VSI |
| * @vsi: the VSI being configured |
| * |
| * Return 0 on success and a negative value on error |
| * Configure the Tx queues dedicated for XDP in given VSI for operation. |
| */ |
| int ice_vsi_cfg_xdp_txqs(struct ice_vsi *vsi) |
| { |
| int ret; |
| int i; |
| |
| ret = ice_vsi_cfg_txqs(vsi, vsi->xdp_rings, vsi->num_xdp_txq); |
| if (ret) |
| return ret; |
| |
| ice_for_each_xdp_txq(vsi, i) |
| vsi->xdp_rings[i]->xsk_pool = ice_tx_xsk_pool(vsi->xdp_rings[i]); |
| |
| return ret; |
| } |
| |
| /** |
| * ice_intrl_usec_to_reg - convert interrupt rate limit to register value |
| * @intrl: interrupt rate limit in usecs |
| * @gran: interrupt rate limit granularity in usecs |
| * |
| * This function converts a decimal interrupt rate limit in usecs to the format |
| * expected by firmware. |
| */ |
| static u32 ice_intrl_usec_to_reg(u8 intrl, u8 gran) |
| { |
| u32 val = intrl / gran; |
| |
| if (val) |
| return val | GLINT_RATE_INTRL_ENA_M; |
| return 0; |
| } |
| |
| /** |
| * ice_write_intrl - write throttle rate limit to interrupt specific register |
| * @q_vector: pointer to interrupt specific structure |
| * @intrl: throttle rate limit in microseconds to write |
| */ |
| void ice_write_intrl(struct ice_q_vector *q_vector, u8 intrl) |
| { |
| struct ice_hw *hw = &q_vector->vsi->back->hw; |
| |
| wr32(hw, GLINT_RATE(q_vector->reg_idx), |
| ice_intrl_usec_to_reg(intrl, ICE_INTRL_GRAN_ABOVE_25)); |
| } |
| |
| static struct ice_q_vector *ice_pull_qvec_from_rc(struct ice_ring_container *rc) |
| { |
| switch (rc->type) { |
| case ICE_RX_CONTAINER: |
| if (rc->rx_ring) |
| return rc->rx_ring->q_vector; |
| break; |
| case ICE_TX_CONTAINER: |
| if (rc->tx_ring) |
| return rc->tx_ring->q_vector; |
| break; |
| default: |
| break; |
| } |
| |
| return NULL; |
| } |
| |
| /** |
| * __ice_write_itr - write throttle rate to register |
| * @q_vector: pointer to interrupt data structure |
| * @rc: pointer to ring container |
| * @itr: throttle rate in microseconds to write |
| */ |
| static void __ice_write_itr(struct ice_q_vector *q_vector, |
| struct ice_ring_container *rc, u16 itr) |
| { |
| struct ice_hw *hw = &q_vector->vsi->back->hw; |
| |
| wr32(hw, GLINT_ITR(rc->itr_idx, q_vector->reg_idx), |
| ITR_REG_ALIGN(itr) >> ICE_ITR_GRAN_S); |
| } |
| |
| /** |
| * ice_write_itr - write throttle rate to queue specific register |
| * @rc: pointer to ring container |
| * @itr: throttle rate in microseconds to write |
| */ |
| void ice_write_itr(struct ice_ring_container *rc, u16 itr) |
| { |
| struct ice_q_vector *q_vector; |
| |
| q_vector = ice_pull_qvec_from_rc(rc); |
| if (!q_vector) |
| return; |
| |
| __ice_write_itr(q_vector, rc, itr); |
| } |
| |
| /** |
| * ice_set_q_vector_intrl - set up interrupt rate limiting |
| * @q_vector: the vector to be configured |
| * |
| * Interrupt rate limiting is local to the vector, not per-queue so we must |
| * detect if either ring container has dynamic moderation enabled to decide |
| * what to set the interrupt rate limit to via INTRL settings. In the case that |
| * dynamic moderation is disabled on both, write the value with the cached |
| * setting to make sure INTRL register matches the user visible value. |
| */ |
| void ice_set_q_vector_intrl(struct ice_q_vector *q_vector) |
| { |
| if (ITR_IS_DYNAMIC(&q_vector->tx) || ITR_IS_DYNAMIC(&q_vector->rx)) { |
| /* in the case of dynamic enabled, cap each vector to no more |
| * than (4 us) 250,000 ints/sec, which allows low latency |
| * but still less than 500,000 interrupts per second, which |
| * reduces CPU a bit in the case of the lowest latency |
| * setting. The 4 here is a value in microseconds. |
| */ |
| ice_write_intrl(q_vector, 4); |
| } else { |
| ice_write_intrl(q_vector, q_vector->intrl); |
| } |
| } |
| |
| /** |
| * ice_vsi_cfg_msix - MSIX mode Interrupt Config in the HW |
| * @vsi: the VSI being configured |
| * |
| * This configures MSIX mode interrupts for the PF VSI, and should not be used |
| * for the VF VSI. |
| */ |
| void ice_vsi_cfg_msix(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| u16 txq = 0, rxq = 0; |
| int i, q; |
| |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| u16 reg_idx = q_vector->reg_idx; |
| |
| ice_cfg_itr(hw, q_vector); |
| |
| /* Both Transmit Queue Interrupt Cause Control register |
| * and Receive Queue Interrupt Cause control register |
| * expects MSIX_INDX field to be the vector index |
| * within the function space and not the absolute |
| * vector index across PF or across device. |
| * For SR-IOV VF VSIs queue vector index always starts |
| * with 1 since first vector index(0) is used for OICR |
| * in VF space. Since VMDq and other PF VSIs are within |
| * the PF function space, use the vector index that is |
| * tracked for this PF. |
| */ |
| for (q = 0; q < q_vector->num_ring_tx; q++) { |
| ice_cfg_txq_interrupt(vsi, txq, reg_idx, |
| q_vector->tx.itr_idx); |
| txq++; |
| } |
| |
| for (q = 0; q < q_vector->num_ring_rx; q++) { |
| ice_cfg_rxq_interrupt(vsi, rxq, reg_idx, |
| q_vector->rx.itr_idx); |
| rxq++; |
| } |
| } |
| } |
| |
| /** |
| * ice_vsi_manage_vlan_insertion - Manage VLAN insertion for the VSI for Tx |
| * @vsi: the VSI being changed |
| */ |
| int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi) |
| { |
| struct ice_hw *hw = &vsi->back->hw; |
| struct ice_vsi_ctx *ctxt; |
| int ret; |
| |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return -ENOMEM; |
| |
| /* Here we are configuring the VSI to let the driver add VLAN tags by |
| * setting vlan_flags to ICE_AQ_VSI_VLAN_MODE_ALL. The actual VLAN tag |
| * insertion happens in the Tx hot path, in ice_tx_map. |
| */ |
| ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL; |
| |
| /* Preserve existing VLAN strip setting */ |
| ctxt->info.vlan_flags |= (vsi->info.vlan_flags & |
| ICE_AQ_VSI_VLAN_EMOD_M); |
| |
| ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); |
| |
| ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); |
| if (ret) { |
| dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN insert failed, err %d aq_err %s\n", |
| ret, ice_aq_str(hw->adminq.sq_last_status)); |
| goto out; |
| } |
| |
| vsi->info.vlan_flags = ctxt->info.vlan_flags; |
| out: |
| kfree(ctxt); |
| return ret; |
| } |
| |
| /** |
| * ice_vsi_manage_vlan_stripping - Manage VLAN stripping for the VSI for Rx |
| * @vsi: the VSI being changed |
| * @ena: boolean value indicating if this is a enable or disable request |
| */ |
| int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) |
| { |
| struct ice_hw *hw = &vsi->back->hw; |
| struct ice_vsi_ctx *ctxt; |
| int ret; |
| |
| /* do not allow modifying VLAN stripping when a port VLAN is configured |
| * on this VSI |
| */ |
| if (vsi->info.pvid) |
| return 0; |
| |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return -ENOMEM; |
| |
| /* Here we are configuring what the VSI should do with the VLAN tag in |
| * the Rx packet. We can either leave the tag in the packet or put it in |
| * the Rx descriptor. |
| */ |
| if (ena) |
| /* Strip VLAN tag from Rx packet and put it in the desc */ |
| ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_STR_BOTH; |
| else |
| /* Disable stripping. Leave tag in packet */ |
| ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_EMOD_NOTHING; |
| |
| /* Allow all packets untagged/tagged */ |
| ctxt->info.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL; |
| |
| ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); |
| |
| ret = ice_update_vsi(hw, vsi->idx, ctxt, NULL); |
| if (ret) { |
| dev_err(ice_pf_to_dev(vsi->back), "update VSI for VLAN strip failed, ena = %d err %d aq_err %s\n", |
| ena, ret, ice_aq_str(hw->adminq.sq_last_status)); |
| goto out; |
| } |
| |
| vsi->info.vlan_flags = ctxt->info.vlan_flags; |
| out: |
| kfree(ctxt); |
| return ret; |
| } |
| |
| /** |
| * ice_vsi_start_all_rx_rings - start/enable all of a VSI's Rx rings |
| * @vsi: the VSI whose rings are to be enabled |
| * |
| * Returns 0 on success and a negative value on error |
| */ |
| int ice_vsi_start_all_rx_rings(struct ice_vsi *vsi) |
| { |
| return ice_vsi_ctrl_all_rx_rings(vsi, true); |
| } |
| |
| /** |
| * ice_vsi_stop_all_rx_rings - stop/disable all of a VSI's Rx rings |
| * @vsi: the VSI whose rings are to be disabled |
| * |
| * Returns 0 on success and a negative value on error |
| */ |
| int ice_vsi_stop_all_rx_rings(struct ice_vsi *vsi) |
| { |
| return ice_vsi_ctrl_all_rx_rings(vsi, false); |
| } |
| |
| /** |
| * ice_vsi_stop_tx_rings - Disable Tx rings |
| * @vsi: the VSI being configured |
| * @rst_src: reset source |
| * @rel_vmvf_num: Relative ID of VF/VM |
| * @rings: Tx ring array to be stopped |
| * @count: number of Tx ring array elements |
| */ |
| static int |
| ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, |
| u16 rel_vmvf_num, struct ice_tx_ring **rings, u16 count) |
| { |
| u16 q_idx; |
| |
| if (vsi->num_txq > ICE_LAN_TXQ_MAX_QDIS) |
| return -EINVAL; |
| |
| for (q_idx = 0; q_idx < count; q_idx++) { |
| struct ice_txq_meta txq_meta = { }; |
| int status; |
| |
| if (!rings || !rings[q_idx]) |
| return -EINVAL; |
| |
| ice_fill_txq_meta(vsi, rings[q_idx], &txq_meta); |
| status = ice_vsi_stop_tx_ring(vsi, rst_src, rel_vmvf_num, |
| rings[q_idx], &txq_meta); |
| |
| if (status) |
| return status; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_stop_lan_tx_rings - Disable LAN Tx rings |
| * @vsi: the VSI being configured |
| * @rst_src: reset source |
| * @rel_vmvf_num: Relative ID of VF/VM |
| */ |
| int |
| ice_vsi_stop_lan_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, |
| u16 rel_vmvf_num) |
| { |
| return ice_vsi_stop_tx_rings(vsi, rst_src, rel_vmvf_num, vsi->tx_rings, vsi->num_txq); |
| } |
| |
| /** |
| * ice_vsi_stop_xdp_tx_rings - Disable XDP Tx rings |
| * @vsi: the VSI being configured |
| */ |
| int ice_vsi_stop_xdp_tx_rings(struct ice_vsi *vsi) |
| { |
| return ice_vsi_stop_tx_rings(vsi, ICE_NO_RESET, 0, vsi->xdp_rings, vsi->num_xdp_txq); |
| } |
| |
| /** |
| * ice_vsi_is_vlan_pruning_ena - check if VLAN pruning is enabled or not |
| * @vsi: VSI to check whether or not VLAN pruning is enabled. |
| * |
| * returns true if Rx VLAN pruning is enabled and false otherwise. |
| */ |
| bool ice_vsi_is_vlan_pruning_ena(struct ice_vsi *vsi) |
| { |
| if (!vsi) |
| return false; |
| |
| return (vsi->info.sw_flags2 & ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA); |
| } |
| |
| /** |
| * ice_cfg_vlan_pruning - enable or disable VLAN pruning on the VSI |
| * @vsi: VSI to enable or disable VLAN pruning on |
| * @ena: set to true to enable VLAN pruning and false to disable it |
| * |
| * returns 0 if VSI is updated, negative otherwise |
| */ |
| int ice_cfg_vlan_pruning(struct ice_vsi *vsi, bool ena) |
| { |
| struct ice_vsi_ctx *ctxt; |
| struct ice_pf *pf; |
| int status; |
| |
| if (!vsi) |
| return -EINVAL; |
| |
| /* Don't enable VLAN pruning if the netdev is currently in promiscuous |
| * mode. VLAN pruning will be enabled when the interface exits |
| * promiscuous mode if any VLAN filters are active. |
| */ |
| if (vsi->netdev && vsi->netdev->flags & IFF_PROMISC && ena) |
| return 0; |
| |
| pf = vsi->back; |
| ctxt = kzalloc(sizeof(*ctxt), GFP_KERNEL); |
| if (!ctxt) |
| return -ENOMEM; |
| |
| ctxt->info = vsi->info; |
| |
| if (ena) |
| ctxt->info.sw_flags2 |= ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; |
| else |
| ctxt->info.sw_flags2 &= ~ICE_AQ_VSI_SW_FLAG_RX_VLAN_PRUNE_ENA; |
| |
| ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SW_VALID); |
| |
| status = ice_update_vsi(&pf->hw, vsi->idx, ctxt, NULL); |
| if (status) { |
| netdev_err(vsi->netdev, "%sabling VLAN pruning on VSI handle: %d, VSI HW ID: %d failed, err = %d, aq_err = %s\n", |
| ena ? "En" : "Dis", vsi->idx, vsi->vsi_num, |
| status, ice_aq_str(pf->hw.adminq.sq_last_status)); |
| goto err_out; |
| } |
| |
| vsi->info.sw_flags2 = ctxt->info.sw_flags2; |
| |
| kfree(ctxt); |
| return 0; |
| |
| err_out: |
| kfree(ctxt); |
| return -EIO; |
| } |
| |
| static void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) |
| { |
| if (!test_bit(ICE_FLAG_DCB_ENA, vsi->back->flags)) { |
| vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; |
| vsi->tc_cfg.numtc = 1; |
| return; |
| } |
| |
| /* set VSI TC information based on DCB config */ |
| ice_vsi_set_dcb_tc_cfg(vsi); |
| } |
| |
| /** |
| * ice_vsi_set_q_vectors_reg_idx - set the HW register index for all q_vectors |
| * @vsi: VSI to set the q_vectors register index on |
| */ |
| static int |
| ice_vsi_set_q_vectors_reg_idx(struct ice_vsi *vsi) |
| { |
| u16 i; |
| |
| if (!vsi || !vsi->q_vectors) |
| return -EINVAL; |
| |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| |
| if (!q_vector) { |
| dev_err(ice_pf_to_dev(vsi->back), "Failed to set reg_idx on q_vector %d VSI %d\n", |
| i, vsi->vsi_num); |
| goto clear_reg_idx; |
| } |
| |
| if (vsi->type == ICE_VSI_VF) { |
| struct ice_vf *vf = &vsi->back->vf[vsi->vf_id]; |
| |
| q_vector->reg_idx = ice_calc_vf_reg_idx(vf, q_vector); |
| } else { |
| q_vector->reg_idx = |
| q_vector->v_idx + vsi->base_vector; |
| } |
| } |
| |
| return 0; |
| |
| clear_reg_idx: |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| |
| if (q_vector) |
| q_vector->reg_idx = 0; |
| } |
| |
| return -EINVAL; |
| } |
| |
| /** |
| * ice_cfg_sw_lldp - Config switch rules for LLDP packet handling |
| * @vsi: the VSI being configured |
| * @tx: bool to determine Tx or Rx rule |
| * @create: bool to determine create or remove Rule |
| */ |
| void ice_cfg_sw_lldp(struct ice_vsi *vsi, bool tx, bool create) |
| { |
| int (*eth_fltr)(struct ice_vsi *v, u16 type, u16 flag, |
| enum ice_sw_fwd_act_type act); |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int status; |
| |
| dev = ice_pf_to_dev(pf); |
| eth_fltr = create ? ice_fltr_add_eth : ice_fltr_remove_eth; |
| |
| if (tx) { |
| status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_TX, |
| ICE_DROP_PACKET); |
| } else { |
| if (ice_fw_supports_lldp_fltr_ctrl(&pf->hw)) { |
| status = ice_lldp_fltr_add_remove(&pf->hw, vsi->vsi_num, |
| create); |
| } else { |
| status = eth_fltr(vsi, ETH_P_LLDP, ICE_FLTR_RX, |
| ICE_FWD_TO_VSI); |
| } |
| } |
| |
| if (status) |
| dev_dbg(dev, "Fail %s %s LLDP rule on VSI %i error: %d\n", |
| create ? "adding" : "removing", tx ? "TX" : "RX", |
| vsi->vsi_num, status); |
| } |
| |
| /** |
| * ice_set_agg_vsi - sets up scheduler aggregator node and move VSI into it |
| * @vsi: pointer to the VSI |
| * |
| * This function will allocate new scheduler aggregator now if needed and will |
| * move specified VSI into it. |
| */ |
| static void ice_set_agg_vsi(struct ice_vsi *vsi) |
| { |
| struct device *dev = ice_pf_to_dev(vsi->back); |
| struct ice_agg_node *agg_node_iter = NULL; |
| u32 agg_id = ICE_INVALID_AGG_NODE_ID; |
| struct ice_agg_node *agg_node = NULL; |
| int node_offset, max_agg_nodes = 0; |
| struct ice_port_info *port_info; |
| struct ice_pf *pf = vsi->back; |
| u32 agg_node_id_start = 0; |
| int status; |
| |
| /* create (as needed) scheduler aggregator node and move VSI into |
| * corresponding aggregator node |
| * - PF aggregator node to contains VSIs of type _PF and _CTRL |
| * - VF aggregator nodes will contain VF VSI |
| */ |
| port_info = pf->hw.port_info; |
| if (!port_info) |
| return; |
| |
| switch (vsi->type) { |
| case ICE_VSI_CTRL: |
| case ICE_VSI_CHNL: |
| case ICE_VSI_LB: |
| case ICE_VSI_PF: |
| case ICE_VSI_SWITCHDEV_CTRL: |
| max_agg_nodes = ICE_MAX_PF_AGG_NODES; |
| agg_node_id_start = ICE_PF_AGG_NODE_ID_START; |
| agg_node_iter = &pf->pf_agg_node[0]; |
| break; |
| case ICE_VSI_VF: |
| /* user can create 'n' VFs on a given PF, but since max children |
| * per aggregator node can be only 64. Following code handles |
| * aggregator(s) for VF VSIs, either selects a agg_node which |
| * was already created provided num_vsis < 64, otherwise |
| * select next available node, which will be created |
| */ |
| max_agg_nodes = ICE_MAX_VF_AGG_NODES; |
| agg_node_id_start = ICE_VF_AGG_NODE_ID_START; |
| agg_node_iter = &pf->vf_agg_node[0]; |
| break; |
| default: |
| /* other VSI type, handle later if needed */ |
| dev_dbg(dev, "unexpected VSI type %s\n", |
| ice_vsi_type_str(vsi->type)); |
| return; |
| } |
| |
| /* find the appropriate aggregator node */ |
| for (node_offset = 0; node_offset < max_agg_nodes; node_offset++) { |
| /* see if we can find space in previously created |
| * node if num_vsis < 64, otherwise skip |
| */ |
| if (agg_node_iter->num_vsis && |
| agg_node_iter->num_vsis == ICE_MAX_VSIS_IN_AGG_NODE) { |
| agg_node_iter++; |
| continue; |
| } |
| |
| if (agg_node_iter->valid && |
| agg_node_iter->agg_id != ICE_INVALID_AGG_NODE_ID) { |
| agg_id = agg_node_iter->agg_id; |
| agg_node = agg_node_iter; |
| break; |
| } |
| |
| /* find unclaimed agg_id */ |
| if (agg_node_iter->agg_id == ICE_INVALID_AGG_NODE_ID) { |
| agg_id = node_offset + agg_node_id_start; |
| agg_node = agg_node_iter; |
| break; |
| } |
| /* move to next agg_node */ |
| agg_node_iter++; |
| } |
| |
| if (!agg_node) |
| return; |
| |
| /* if selected aggregator node was not created, create it */ |
| if (!agg_node->valid) { |
| status = ice_cfg_agg(port_info, agg_id, ICE_AGG_TYPE_AGG, |
| (u8)vsi->tc_cfg.ena_tc); |
| if (status) { |
| dev_err(dev, "unable to create aggregator node with agg_id %u\n", |
| agg_id); |
| return; |
| } |
| /* aggregator node is created, store the neeeded info */ |
| agg_node->valid = true; |
| agg_node->agg_id = agg_id; |
| } |
| |
| /* move VSI to corresponding aggregator node */ |
| status = ice_move_vsi_to_agg(port_info, agg_id, vsi->idx, |
| (u8)vsi->tc_cfg.ena_tc); |
| if (status) { |
| dev_err(dev, "unable to move VSI idx %u into aggregator %u node", |
| vsi->idx, agg_id); |
| return; |
| } |
| |
| /* keep active children count for aggregator node */ |
| agg_node->num_vsis++; |
| |
| /* cache the 'agg_id' in VSI, so that after reset - VSI will be moved |
| * to aggregator node |
| */ |
| vsi->agg_node = agg_node; |
| dev_dbg(dev, "successfully moved VSI idx %u tc_bitmap 0x%x) into aggregator node %d which has num_vsis %u\n", |
| vsi->idx, vsi->tc_cfg.ena_tc, vsi->agg_node->agg_id, |
| vsi->agg_node->num_vsis); |
| } |
| |
| /** |
| * ice_vsi_setup - Set up a VSI by a given type |
| * @pf: board private structure |
| * @pi: pointer to the port_info instance |
| * @vsi_type: VSI type |
| * @vf_id: defines VF ID to which this VSI connects. This field is meant to be |
| * used only for ICE_VSI_VF VSI type. For other VSI types, should |
| * fill-in ICE_INVAL_VFID as input. |
| * @ch: ptr to channel |
| * |
| * This allocates the sw VSI structure and its queue resources. |
| * |
| * Returns pointer to the successfully allocated and configured VSI sw struct on |
| * success, NULL on failure. |
| */ |
| struct ice_vsi * |
| ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, |
| enum ice_vsi_type vsi_type, u16 vf_id, struct ice_channel *ch) |
| { |
| u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; |
| struct device *dev = ice_pf_to_dev(pf); |
| struct ice_vsi *vsi; |
| int ret, i; |
| |
| if (vsi_type == ICE_VSI_CHNL) |
| vsi = ice_vsi_alloc(pf, vsi_type, ch, ICE_INVAL_VFID); |
| else if (vsi_type == ICE_VSI_VF || vsi_type == ICE_VSI_CTRL) |
| vsi = ice_vsi_alloc(pf, vsi_type, NULL, vf_id); |
| else |
| vsi = ice_vsi_alloc(pf, vsi_type, NULL, ICE_INVAL_VFID); |
| |
| if (!vsi) { |
| dev_err(dev, "could not allocate VSI\n"); |
| return NULL; |
| } |
| |
| vsi->port_info = pi; |
| vsi->vsw = pf->first_sw; |
| if (vsi->type == ICE_VSI_PF) |
| vsi->ethtype = ETH_P_PAUSE; |
| |
| if (vsi->type == ICE_VSI_VF || vsi->type == ICE_VSI_CTRL) |
| vsi->vf_id = vf_id; |
| |
| ice_alloc_fd_res(vsi); |
| |
| if (vsi_type != ICE_VSI_CHNL) { |
| if (ice_vsi_get_qs(vsi)) { |
| dev_err(dev, "Failed to allocate queues. vsi->idx = %d\n", |
| vsi->idx); |
| goto unroll_vsi_alloc; |
| } |
| } |
| |
| /* set RSS capabilities */ |
| ice_vsi_set_rss_params(vsi); |
| |
| /* set TC configuration */ |
| ice_vsi_set_tc_cfg(vsi); |
| |
| /* create the VSI */ |
| ret = ice_vsi_init(vsi, true); |
| if (ret) |
| goto unroll_get_qs; |
| |
| switch (vsi->type) { |
| case ICE_VSI_CTRL: |
| case ICE_VSI_SWITCHDEV_CTRL: |
| case ICE_VSI_PF: |
| ret = ice_vsi_alloc_q_vectors(vsi); |
| if (ret) |
| goto unroll_vsi_init; |
| |
| ret = ice_vsi_setup_vector_base(vsi); |
| if (ret) |
| goto unroll_alloc_q_vector; |
| |
| ret = ice_vsi_set_q_vectors_reg_idx(vsi); |
| if (ret) |
| goto unroll_vector_base; |
| |
| ret = ice_vsi_alloc_rings(vsi); |
| if (ret) |
| goto unroll_vector_base; |
| |
| /* Always add VLAN ID 0 switch rule by default. This is needed |
| * in order to allow all untagged and 0 tagged priority traffic |
| * if Rx VLAN pruning is enabled. Also there are cases where we |
| * don't get the call to add VLAN 0 via ice_vlan_rx_add_vid() |
| * so this handles those cases (i.e. adding the PF to a bridge |
| * without the 8021q module loaded). |
| */ |
| ret = ice_vsi_add_vlan(vsi, 0, ICE_FWD_TO_VSI); |
| if (ret) |
| goto unroll_clear_rings; |
| |
| ice_vsi_map_rings_to_vectors(vsi); |
| |
| /* ICE_VSI_CTRL does not need RSS so skip RSS processing */ |
| if (vsi->type != ICE_VSI_CTRL) |
| /* Do not exit if configuring RSS had an issue, at |
| * least receive traffic on first queue. Hence no |
| * need to capture return value |
| */ |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| ice_vsi_cfg_rss_lut_key(vsi); |
| ice_vsi_set_rss_flow_fld(vsi); |
| } |
| ice_init_arfs(vsi); |
| break; |
| case ICE_VSI_CHNL: |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| ice_vsi_cfg_rss_lut_key(vsi); |
| ice_vsi_set_rss_flow_fld(vsi); |
| } |
| break; |
| case ICE_VSI_VF: |
| /* VF driver will take care of creating netdev for this type and |
| * map queues to vectors through Virtchnl, PF driver only |
| * creates a VSI and corresponding structures for bookkeeping |
| * purpose |
| */ |
| ret = ice_vsi_alloc_q_vectors(vsi); |
| if (ret) |
| goto unroll_vsi_init; |
| |
| ret = ice_vsi_alloc_rings(vsi); |
| if (ret) |
| goto unroll_alloc_q_vector; |
| |
| ret = ice_vsi_set_q_vectors_reg_idx(vsi); |
| if (ret) |
| goto unroll_vector_base; |
| |
| /* Do not exit if configuring RSS had an issue, at least |
| * receive traffic on first queue. Hence no need to capture |
| * return value |
| */ |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| ice_vsi_cfg_rss_lut_key(vsi); |
| ice_vsi_set_vf_rss_flow_fld(vsi); |
| } |
| break; |
| case ICE_VSI_LB: |
| ret = ice_vsi_alloc_rings(vsi); |
| if (ret) |
| goto unroll_vsi_init; |
| break; |
| default: |
| /* clean up the resources and exit */ |
| goto unroll_vsi_init; |
| } |
| |
| /* configure VSI nodes based on number of queues and TC's */ |
| ice_for_each_traffic_class(i) { |
| if (!(vsi->tc_cfg.ena_tc & BIT(i))) |
| continue; |
| |
| if (vsi->type == ICE_VSI_CHNL) { |
| if (!vsi->alloc_txq && vsi->num_txq) |
| max_txqs[i] = vsi->num_txq; |
| else |
| max_txqs[i] = pf->num_lan_tx; |
| } else { |
| max_txqs[i] = vsi->alloc_txq; |
| } |
| } |
| |
| dev_dbg(dev, "vsi->tc_cfg.ena_tc = %d\n", vsi->tc_cfg.ena_tc); |
| ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, |
| max_txqs); |
| if (ret) { |
| dev_err(dev, "VSI %d failed lan queue config, error %d\n", |
| vsi->vsi_num, ret); |
| goto unroll_clear_rings; |
| } |
| |
| /* Add switch rule to drop all Tx Flow Control Frames, of look up |
| * type ETHERTYPE from VSIs, and restrict malicious VF from sending |
| * out PAUSE or PFC frames. If enabled, FW can still send FC frames. |
| * The rule is added once for PF VSI in order to create appropriate |
| * recipe, since VSI/VSI list is ignored with drop action... |
| * Also add rules to handle LLDP Tx packets. Tx LLDP packets need to |
| * be dropped so that VFs cannot send LLDP packets to reconfig DCB |
| * settings in the HW. |
| */ |
| if (!ice_is_safe_mode(pf)) |
| if (vsi->type == ICE_VSI_PF) { |
| ice_fltr_add_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX, |
| ICE_DROP_PACKET); |
| ice_cfg_sw_lldp(vsi, true, true); |
| } |
| |
| if (!vsi->agg_node) |
| ice_set_agg_vsi(vsi); |
| return vsi; |
| |
| unroll_clear_rings: |
| ice_vsi_clear_rings(vsi); |
| unroll_vector_base: |
| /* reclaim SW interrupts back to the common pool */ |
| ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx); |
| pf->num_avail_sw_msix += vsi->num_q_vectors; |
| unroll_alloc_q_vector: |
| ice_vsi_free_q_vectors(vsi); |
| unroll_vsi_init: |
| ice_vsi_delete(vsi); |
| unroll_get_qs: |
| ice_vsi_put_qs(vsi); |
| unroll_vsi_alloc: |
| if (vsi_type == ICE_VSI_VF) |
| ice_enable_lag(pf->lag); |
| ice_vsi_clear(vsi); |
| |
| return NULL; |
| } |
| |
| /** |
| * ice_vsi_release_msix - Clear the queue to Interrupt mapping in HW |
| * @vsi: the VSI being cleaned up |
| */ |
| static void ice_vsi_release_msix(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| u32 txq = 0; |
| u32 rxq = 0; |
| int i, q; |
| |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| |
| ice_write_intrl(q_vector, 0); |
| for (q = 0; q < q_vector->num_ring_tx; q++) { |
| ice_write_itr(&q_vector->tx, 0); |
| wr32(hw, QINT_TQCTL(vsi->txq_map[txq]), 0); |
| if (ice_is_xdp_ena_vsi(vsi)) { |
| u32 xdp_txq = txq + vsi->num_xdp_txq; |
| |
| wr32(hw, QINT_TQCTL(vsi->txq_map[xdp_txq]), 0); |
| } |
| txq++; |
| } |
| |
| for (q = 0; q < q_vector->num_ring_rx; q++) { |
| ice_write_itr(&q_vector->rx, 0); |
| wr32(hw, QINT_RQCTL(vsi->rxq_map[rxq]), 0); |
| rxq++; |
| } |
| } |
| |
| ice_flush(hw); |
| } |
| |
| /** |
| * ice_vsi_free_irq - Free the IRQ association with the OS |
| * @vsi: the VSI being configured |
| */ |
| void ice_vsi_free_irq(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf = vsi->back; |
| int base = vsi->base_vector; |
| int i; |
| |
| if (!vsi->q_vectors || !vsi->irqs_ready) |
| return; |
| |
| ice_vsi_release_msix(vsi); |
| if (vsi->type == ICE_VSI_VF) |
| return; |
| |
| vsi->irqs_ready = false; |
| ice_for_each_q_vector(vsi, i) { |
| u16 vector = i + base; |
| int irq_num; |
| |
| irq_num = pf->msix_entries[vector].vector; |
| |
| /* free only the irqs that were actually requested */ |
| if (!vsi->q_vectors[i] || |
| !(vsi->q_vectors[i]->num_ring_tx || |
| vsi->q_vectors[i]->num_ring_rx)) |
| continue; |
| |
| /* clear the affinity notifier in the IRQ descriptor */ |
| irq_set_affinity_notifier(irq_num, NULL); |
| |
| /* clear the affinity_mask in the IRQ descriptor */ |
| irq_set_affinity_hint(irq_num, NULL); |
| synchronize_irq(irq_num); |
| devm_free_irq(ice_pf_to_dev(pf), irq_num, vsi->q_vectors[i]); |
| } |
| } |
| |
| /** |
| * ice_vsi_free_tx_rings - Free Tx resources for VSI queues |
| * @vsi: the VSI having resources freed |
| */ |
| void ice_vsi_free_tx_rings(struct ice_vsi *vsi) |
| { |
| int i; |
| |
| if (!vsi->tx_rings) |
| return; |
| |
| ice_for_each_txq(vsi, i) |
| if (vsi->tx_rings[i] && vsi->tx_rings[i]->desc) |
| ice_free_tx_ring(vsi->tx_rings[i]); |
| } |
| |
| /** |
| * ice_vsi_free_rx_rings - Free Rx resources for VSI queues |
| * @vsi: the VSI having resources freed |
| */ |
| void ice_vsi_free_rx_rings(struct ice_vsi *vsi) |
| { |
| int i; |
| |
| if (!vsi->rx_rings) |
| return; |
| |
| ice_for_each_rxq(vsi, i) |
| if (vsi->rx_rings[i] && vsi->rx_rings[i]->desc) |
| ice_free_rx_ring(vsi->rx_rings[i]); |
| } |
| |
| /** |
| * ice_vsi_close - Shut down a VSI |
| * @vsi: the VSI being shut down |
| */ |
| void ice_vsi_close(struct ice_vsi *vsi) |
| { |
| if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) |
| ice_down(vsi); |
| |
| ice_vsi_free_irq(vsi); |
| ice_vsi_free_tx_rings(vsi); |
| ice_vsi_free_rx_rings(vsi); |
| } |
| |
| /** |
| * ice_ena_vsi - resume a VSI |
| * @vsi: the VSI being resume |
| * @locked: is the rtnl_lock already held |
| */ |
| int ice_ena_vsi(struct ice_vsi *vsi, bool locked) |
| { |
| int err = 0; |
| |
| if (!test_bit(ICE_VSI_NEEDS_RESTART, vsi->state)) |
| return 0; |
| |
| clear_bit(ICE_VSI_NEEDS_RESTART, vsi->state); |
| |
| if (vsi->netdev && vsi->type == ICE_VSI_PF) { |
| if (netif_running(vsi->netdev)) { |
| if (!locked) |
| rtnl_lock(); |
| |
| err = ice_open_internal(vsi->netdev); |
| |
| if (!locked) |
| rtnl_unlock(); |
| } |
| } else if (vsi->type == ICE_VSI_CTRL) { |
| err = ice_vsi_open_ctrl(vsi); |
| } |
| |
| return err; |
| } |
| |
| /** |
| * ice_dis_vsi - pause a VSI |
| * @vsi: the VSI being paused |
| * @locked: is the rtnl_lock already held |
| */ |
| void ice_dis_vsi(struct ice_vsi *vsi, bool locked) |
| { |
| if (test_bit(ICE_VSI_DOWN, vsi->state)) |
| return; |
| |
| set_bit(ICE_VSI_NEEDS_RESTART, vsi->state); |
| |
| if (vsi->type == ICE_VSI_PF && vsi->netdev) { |
| if (netif_running(vsi->netdev)) { |
| if (!locked) |
| rtnl_lock(); |
| |
| ice_vsi_close(vsi); |
| |
| if (!locked) |
| rtnl_unlock(); |
| } else { |
| ice_vsi_close(vsi); |
| } |
| } else if (vsi->type == ICE_VSI_CTRL || |
| vsi->type == ICE_VSI_SWITCHDEV_CTRL) { |
| ice_vsi_close(vsi); |
| } |
| } |
| |
| /** |
| * ice_vsi_dis_irq - Mask off queue interrupt generation on the VSI |
| * @vsi: the VSI being un-configured |
| */ |
| void ice_vsi_dis_irq(struct ice_vsi *vsi) |
| { |
| int base = vsi->base_vector; |
| struct ice_pf *pf = vsi->back; |
| struct ice_hw *hw = &pf->hw; |
| u32 val; |
| int i; |
| |
| /* disable interrupt causation from each queue */ |
| if (vsi->tx_rings) { |
| ice_for_each_txq(vsi, i) { |
| if (vsi->tx_rings[i]) { |
| u16 reg; |
| |
| reg = vsi->tx_rings[i]->reg_idx; |
| val = rd32(hw, QINT_TQCTL(reg)); |
| val &= ~QINT_TQCTL_CAUSE_ENA_M; |
| wr32(hw, QINT_TQCTL(reg), val); |
| } |
| } |
| } |
| |
| if (vsi->rx_rings) { |
| ice_for_each_rxq(vsi, i) { |
| if (vsi->rx_rings[i]) { |
| u16 reg; |
| |
| reg = vsi->rx_rings[i]->reg_idx; |
| val = rd32(hw, QINT_RQCTL(reg)); |
| val &= ~QINT_RQCTL_CAUSE_ENA_M; |
| wr32(hw, QINT_RQCTL(reg), val); |
| } |
| } |
| } |
| |
| /* disable each interrupt */ |
| ice_for_each_q_vector(vsi, i) { |
| if (!vsi->q_vectors[i]) |
| continue; |
| wr32(hw, GLINT_DYN_CTL(vsi->q_vectors[i]->reg_idx), 0); |
| } |
| |
| ice_flush(hw); |
| |
| /* don't call synchronize_irq() for VF's from the host */ |
| if (vsi->type == ICE_VSI_VF) |
| return; |
| |
| ice_for_each_q_vector(vsi, i) |
| synchronize_irq(pf->msix_entries[i + base].vector); |
| } |
| |
| /** |
| * ice_napi_del - Remove NAPI handler for the VSI |
| * @vsi: VSI for which NAPI handler is to be removed |
| */ |
| void ice_napi_del(struct ice_vsi *vsi) |
| { |
| int v_idx; |
| |
| if (!vsi->netdev) |
| return; |
| |
| ice_for_each_q_vector(vsi, v_idx) |
| netif_napi_del(&vsi->q_vectors[v_idx]->napi); |
| } |
| |
| /** |
| * ice_vsi_release - Delete a VSI and free its resources |
| * @vsi: the VSI being removed |
| * |
| * Returns 0 on success or < 0 on error |
| */ |
| int ice_vsi_release(struct ice_vsi *vsi) |
| { |
| struct ice_pf *pf; |
| int err; |
| |
| if (!vsi->back) |
| return -ENODEV; |
| pf = vsi->back; |
| |
| /* do not unregister while driver is in the reset recovery pending |
| * state. Since reset/rebuild happens through PF service task workqueue, |
| * it's not a good idea to unregister netdev that is associated to the |
| * PF that is running the work queue items currently. This is done to |
| * avoid check_flush_dependency() warning on this wq |
| */ |
| if (vsi->netdev && !ice_is_reset_in_progress(pf->state) && |
| (test_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state))) { |
| unregister_netdev(vsi->netdev); |
| clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state); |
| } |
| |
| if (vsi->type == ICE_VSI_PF) |
| ice_devlink_destroy_pf_port(pf); |
| |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) |
| ice_rss_clean(vsi); |
| |
| /* Disable VSI and free resources */ |
| if (vsi->type != ICE_VSI_LB) |
| ice_vsi_dis_irq(vsi); |
| ice_vsi_close(vsi); |
| |
| /* SR-IOV determines needed MSIX resources all at once instead of per |
| * VSI since when VFs are spawned we know how many VFs there are and how |
| * many interrupts each VF needs. SR-IOV MSIX resources are also |
| * cleared in the same manner. |
| */ |
| if (vsi->type == ICE_VSI_CTRL && vsi->vf_id != ICE_INVAL_VFID) { |
| int i; |
| |
| ice_for_each_vf(pf, i) { |
| struct ice_vf *vf = &pf->vf[i]; |
| |
| if (i != vsi->vf_id && vf->ctrl_vsi_idx != ICE_NO_VSI) |
| break; |
| } |
| if (i == pf->num_alloc_vfs) { |
| /* No other VFs left that have control VSI, reclaim SW |
| * interrupts back to the common pool |
| */ |
| ice_free_res(pf->irq_tracker, vsi->base_vector, |
| ICE_RES_VF_CTRL_VEC_ID); |
| pf->num_avail_sw_msix += vsi->num_q_vectors; |
| } |
| } else if (vsi->type != ICE_VSI_VF) { |
| /* reclaim SW interrupts back to the common pool */ |
| ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx); |
| pf->num_avail_sw_msix += vsi->num_q_vectors; |
| } |
| |
| if (!ice_is_safe_mode(pf)) { |
| if (vsi->type == ICE_VSI_PF) { |
| ice_fltr_remove_eth(vsi, ETH_P_PAUSE, ICE_FLTR_TX, |
| ICE_DROP_PACKET); |
| ice_cfg_sw_lldp(vsi, true, false); |
| /* The Rx rule will only exist to remove if the LLDP FW |
| * engine is currently stopped |
| */ |
| if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) |
| ice_cfg_sw_lldp(vsi, false, false); |
| } |
| } |
| |
| ice_fltr_remove_all(vsi); |
| ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); |
| err = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx); |
| if (err) |
| dev_err(ice_pf_to_dev(vsi->back), "Failed to remove RDMA scheduler config for VSI %u, err %d\n", |
| vsi->vsi_num, err); |
| ice_vsi_delete(vsi); |
| ice_vsi_free_q_vectors(vsi); |
| |
| if (vsi->netdev) { |
| if (test_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state)) { |
| unregister_netdev(vsi->netdev); |
| clear_bit(ICE_VSI_NETDEV_REGISTERED, vsi->state); |
| } |
| if (test_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state)) { |
| free_netdev(vsi->netdev); |
| vsi->netdev = NULL; |
| clear_bit(ICE_VSI_NETDEV_ALLOCD, vsi->state); |
| } |
| } |
| |
| if (vsi->type == ICE_VSI_VF && |
| vsi->agg_node && vsi->agg_node->valid) |
| vsi->agg_node->num_vsis--; |
| ice_vsi_clear_rings(vsi); |
| |
| ice_vsi_put_qs(vsi); |
| |
| /* retain SW VSI data structure since it is needed to unregister and |
| * free VSI netdev when PF is not in reset recovery pending state,\ |
| * for ex: during rmmod. |
| */ |
| if (!ice_is_reset_in_progress(pf->state)) |
| ice_vsi_clear(vsi); |
| |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_rebuild_get_coalesce - get coalesce from all q_vectors |
| * @vsi: VSI connected with q_vectors |
| * @coalesce: array of struct with stored coalesce |
| * |
| * Returns array size. |
| */ |
| static int |
| ice_vsi_rebuild_get_coalesce(struct ice_vsi *vsi, |
| struct ice_coalesce_stored *coalesce) |
| { |
| int i; |
| |
| ice_for_each_q_vector(vsi, i) { |
| struct ice_q_vector *q_vector = vsi->q_vectors[i]; |
| |
| coalesce[i].itr_tx = q_vector->tx.itr_setting; |
| coalesce[i].itr_rx = q_vector->rx.itr_setting; |
| coalesce[i].intrl = q_vector->intrl; |
| |
| if (i < vsi->num_txq) |
| coalesce[i].tx_valid = true; |
| if (i < vsi->num_rxq) |
| coalesce[i].rx_valid = true; |
| } |
| |
| return vsi->num_q_vectors; |
| } |
| |
| /** |
| * ice_vsi_rebuild_set_coalesce - set coalesce from earlier saved arrays |
| * @vsi: VSI connected with q_vectors |
| * @coalesce: pointer to array of struct with stored coalesce |
| * @size: size of coalesce array |
| * |
| * Before this function, ice_vsi_rebuild_get_coalesce should be called to save |
| * ITR params in arrays. If size is 0 or coalesce wasn't stored set coalesce |
| * to default value. |
| */ |
| static void |
| ice_vsi_rebuild_set_coalesce(struct ice_vsi *vsi, |
| struct ice_coalesce_stored *coalesce, int size) |
| { |
| struct ice_ring_container *rc; |
| int i; |
| |
| if ((size && !coalesce) || !vsi) |
| return; |
| |
| /* There are a couple of cases that have to be handled here: |
| * 1. The case where the number of queue vectors stays the same, but |
| * the number of Tx or Rx rings changes (the first for loop) |
| * 2. The case where the number of queue vectors increased (the |
| * second for loop) |
| */ |
| for (i = 0; i < size && i < vsi->num_q_vectors; i++) { |
| /* There are 2 cases to handle here and they are the same for |
| * both Tx and Rx: |
| * if the entry was valid previously (coalesce[i].[tr]x_valid |
| * and the loop variable is less than the number of rings |
| * allocated, then write the previous values |
| * |
| * if the entry was not valid previously, but the number of |
| * rings is less than are allocated (this means the number of |
| * rings increased from previously), then write out the |
| * values in the first element |
| * |
| * Also, always write the ITR, even if in ITR_IS_DYNAMIC |
| * as there is no harm because the dynamic algorithm |
| * will just overwrite. |
| */ |
| if (i < vsi->alloc_rxq && coalesce[i].rx_valid) { |
| rc = &vsi->q_vectors[i]->rx; |
| rc->itr_setting = coalesce[i].itr_rx; |
| ice_write_itr(rc, rc->itr_setting); |
| } else if (i < vsi->alloc_rxq) { |
| rc = &vsi->q_vectors[i]->rx; |
| rc->itr_setting = coalesce[0].itr_rx; |
| ice_write_itr(rc, rc->itr_setting); |
| } |
| |
| if (i < vsi->alloc_txq && coalesce[i].tx_valid) { |
| rc = &vsi->q_vectors[i]->tx; |
| rc->itr_setting = coalesce[i].itr_tx; |
| ice_write_itr(rc, rc->itr_setting); |
| } else if (i < vsi->alloc_txq) { |
| rc = &vsi->q_vectors[i]->tx; |
| rc->itr_setting = coalesce[0].itr_tx; |
| ice_write_itr(rc, rc->itr_setting); |
| } |
| |
| vsi->q_vectors[i]->intrl = coalesce[i].intrl; |
| ice_set_q_vector_intrl(vsi->q_vectors[i]); |
| } |
| |
| /* the number of queue vectors increased so write whatever is in |
| * the first element |
| */ |
| for (; i < vsi->num_q_vectors; i++) { |
| /* transmit */ |
| rc = &vsi->q_vectors[i]->tx; |
| rc->itr_setting = coalesce[0].itr_tx; |
| ice_write_itr(rc, rc->itr_setting); |
| |
| /* receive */ |
| rc = &vsi->q_vectors[i]->rx; |
| rc->itr_setting = coalesce[0].itr_rx; |
| ice_write_itr(rc, rc->itr_setting); |
| |
| vsi->q_vectors[i]->intrl = coalesce[0].intrl; |
| ice_set_q_vector_intrl(vsi->q_vectors[i]); |
| } |
| } |
| |
| /** |
| * ice_vsi_rebuild - Rebuild VSI after reset |
| * @vsi: VSI to be rebuild |
| * @init_vsi: is this an initialization or a reconfigure of the VSI |
| * |
| * Returns 0 on success and negative value on failure |
| */ |
| int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi) |
| { |
| u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; |
| struct ice_coalesce_stored *coalesce; |
| int prev_num_q_vectors = 0; |
| struct ice_vf *vf = NULL; |
| enum ice_vsi_type vtype; |
| struct ice_pf *pf; |
| int ret, i; |
| |
| if (!vsi) |
| return -EINVAL; |
| |
| pf = vsi->back; |
| vtype = vsi->type; |
| if (vtype == ICE_VSI_VF) |
| vf = &pf->vf[vsi->vf_id]; |
| |
| coalesce = kcalloc(vsi->num_q_vectors, |
| sizeof(struct ice_coalesce_stored), GFP_KERNEL); |
| if (!coalesce) |
| return -ENOMEM; |
| |
| prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce); |
| |
| ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); |
| ret = ice_rm_vsi_rdma_cfg(vsi->port_info, vsi->idx); |
| if (ret) |
| dev_err(ice_pf_to_dev(vsi->back), "Failed to remove RDMA scheduler config for VSI %u, err %d\n", |
| vsi->vsi_num, ret); |
| ice_vsi_free_q_vectors(vsi); |
| |
| /* SR-IOV determines needed MSIX resources all at once instead of per |
| * VSI since when VFs are spawned we know how many VFs there are and how |
| * many interrupts each VF needs. SR-IOV MSIX resources are also |
| * cleared in the same manner. |
| */ |
| if (vtype != ICE_VSI_VF) { |
| /* reclaim SW interrupts back to the common pool */ |
| ice_free_res(pf->irq_tracker, vsi->base_vector, vsi->idx); |
| pf->num_avail_sw_msix += vsi->num_q_vectors; |
| vsi->base_vector = 0; |
| } |
| |
| if (ice_is_xdp_ena_vsi(vsi)) |
| /* return value check can be skipped here, it always returns |
| * 0 if reset is in progress |
| */ |
| ice_destroy_xdp_rings(vsi); |
| ice_vsi_put_qs(vsi); |
| ice_vsi_clear_rings(vsi); |
| ice_vsi_free_arrays(vsi); |
| if (vtype == ICE_VSI_VF) |
| ice_vsi_set_num_qs(vsi, vf->vf_id); |
| else |
| ice_vsi_set_num_qs(vsi, ICE_INVAL_VFID); |
| |
| ret = ice_vsi_alloc_arrays(vsi); |
| if (ret < 0) |
| goto err_vsi; |
| |
| ice_vsi_get_qs(vsi); |
| |
| ice_alloc_fd_res(vsi); |
| ice_vsi_set_tc_cfg(vsi); |
| |
| /* Initialize VSI struct elements and create VSI in FW */ |
| ret = ice_vsi_init(vsi, init_vsi); |
| if (ret < 0) |
| goto err_vsi; |
| |
| switch (vtype) { |
| case ICE_VSI_CTRL: |
| case ICE_VSI_SWITCHDEV_CTRL: |
| case ICE_VSI_PF: |
| ret = ice_vsi_alloc_q_vectors(vsi); |
| if (ret) |
| goto err_rings; |
| |
| ret = ice_vsi_setup_vector_base(vsi); |
| if (ret) |
| goto err_vectors; |
| |
| ret = ice_vsi_set_q_vectors_reg_idx(vsi); |
| if (ret) |
| goto err_vectors; |
| |
| ret = ice_vsi_alloc_rings(vsi); |
| if (ret) |
| goto err_vectors; |
| |
| ice_vsi_map_rings_to_vectors(vsi); |
| if (ice_is_xdp_ena_vsi(vsi)) { |
| ret = ice_vsi_determine_xdp_res(vsi); |
| if (ret) |
| goto err_vectors; |
| ret = ice_prepare_xdp_rings(vsi, vsi->xdp_prog); |
| if (ret) |
| goto err_vectors; |
| } |
| /* ICE_VSI_CTRL does not need RSS so skip RSS processing */ |
| if (vtype != ICE_VSI_CTRL) |
| /* Do not exit if configuring RSS had an issue, at |
| * least receive traffic on first queue. Hence no |
| * need to capture return value |
| */ |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) |
| ice_vsi_cfg_rss_lut_key(vsi); |
| break; |
| case ICE_VSI_VF: |
| ret = ice_vsi_alloc_q_vectors(vsi); |
| if (ret) |
| goto err_rings; |
| |
| ret = ice_vsi_set_q_vectors_reg_idx(vsi); |
| if (ret) |
| goto err_vectors; |
| |
| ret = ice_vsi_alloc_rings(vsi); |
| if (ret) |
| goto err_vectors; |
| |
| break; |
| case ICE_VSI_CHNL: |
| if (test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { |
| ice_vsi_cfg_rss_lut_key(vsi); |
| ice_vsi_set_rss_flow_fld(vsi); |
| } |
| break; |
| default: |
| break; |
| } |
| |
| /* configure VSI nodes based on number of queues and TC's */ |
| for (i = 0; i < vsi->tc_cfg.numtc; i++) { |
| /* configure VSI nodes based on number of queues and TC's. |
| * ADQ creates VSIs for each TC/Channel but doesn't |
| * allocate queues instead it reconfigures the PF queues |
| * as per the TC command. So max_txqs should point to the |
| * PF Tx queues. |
| */ |
| if (vtype == ICE_VSI_CHNL) |
| max_txqs[i] = pf->num_lan_tx; |
| else |
| max_txqs[i] = vsi->alloc_txq; |
| |
| if (ice_is_xdp_ena_vsi(vsi)) |
| max_txqs[i] += vsi->num_xdp_txq; |
| } |
| |
| if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) |
| /* If MQPRIO is set, means channel code path, hence for main |
| * VSI's, use TC as 1 |
| */ |
| ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs); |
| else |
| ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, |
| vsi->tc_cfg.ena_tc, max_txqs); |
| |
| if (ret) { |
| dev_err(ice_pf_to_dev(pf), "VSI %d failed lan queue config, error %d\n", |
| vsi->vsi_num, ret); |
| if (init_vsi) { |
| ret = -EIO; |
| goto err_vectors; |
| } else { |
| return ice_schedule_reset(pf, ICE_RESET_PFR); |
| } |
| } |
| ice_vsi_rebuild_set_coalesce(vsi, coalesce, prev_num_q_vectors); |
| kfree(coalesce); |
| |
| return 0; |
| |
| err_vectors: |
| ice_vsi_free_q_vectors(vsi); |
| err_rings: |
| if (vsi->netdev) { |
| vsi->current_netdev_flags = 0; |
| unregister_netdev(vsi->netdev); |
| free_netdev(vsi->netdev); |
| vsi->netdev = NULL; |
| } |
| err_vsi: |
| ice_vsi_clear(vsi); |
| set_bit(ICE_RESET_FAILED, pf->state); |
| kfree(coalesce); |
| return ret; |
| } |
| |
| /** |
| * ice_is_reset_in_progress - check for a reset in progress |
| * @state: PF state field |
| */ |
| bool ice_is_reset_in_progress(unsigned long *state) |
| { |
| return test_bit(ICE_RESET_OICR_RECV, state) || |
| test_bit(ICE_PFR_REQ, state) || |
| test_bit(ICE_CORER_REQ, state) || |
| test_bit(ICE_GLOBR_REQ, state); |
| } |
| |
| /** |
| * ice_wait_for_reset - Wait for driver to finish reset and rebuild |
| * @pf: pointer to the PF structure |
| * @timeout: length of time to wait, in jiffies |
| * |
| * Wait (sleep) for a short time until the driver finishes cleaning up from |
| * a device reset. The caller must be able to sleep. Use this to delay |
| * operations that could fail while the driver is cleaning up after a device |
| * reset. |
| * |
| * Returns 0 on success, -EBUSY if the reset is not finished within the |
| * timeout, and -ERESTARTSYS if the thread was interrupted. |
| */ |
| int ice_wait_for_reset(struct ice_pf *pf, unsigned long timeout) |
| { |
| long ret; |
| |
| ret = wait_event_interruptible_timeout(pf->reset_wait_queue, |
| !ice_is_reset_in_progress(pf->state), |
| timeout); |
| if (ret < 0) |
| return ret; |
| else if (!ret) |
| return -EBUSY; |
| else |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_update_q_map - update our copy of the VSI info with new queue map |
| * @vsi: VSI being configured |
| * @ctx: the context buffer returned from AQ VSI update command |
| */ |
| static void ice_vsi_update_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctx) |
| { |
| vsi->info.mapping_flags = ctx->info.mapping_flags; |
| memcpy(&vsi->info.q_mapping, &ctx->info.q_mapping, |
| sizeof(vsi->info.q_mapping)); |
| memcpy(&vsi->info.tc_mapping, ctx->info.tc_mapping, |
| sizeof(vsi->info.tc_mapping)); |
| } |
| |
| /** |
| * ice_vsi_cfg_netdev_tc - Setup the netdev TC configuration |
| * @vsi: the VSI being configured |
| * @ena_tc: TC map to be enabled |
| */ |
| void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc) |
| { |
| struct net_device *netdev = vsi->netdev; |
| struct ice_pf *pf = vsi->back; |
| int numtc = vsi->tc_cfg.numtc; |
| struct ice_dcbx_cfg *dcbcfg; |
| u8 netdev_tc; |
| int i; |
| |
| if (!netdev) |
| return; |
| |
| /* CHNL VSI doesn't have it's own netdev, hence, no netdev_tc */ |
| if (vsi->type == ICE_VSI_CHNL) |
| return; |
| |
| if (!ena_tc) { |
| netdev_reset_tc(netdev); |
| return; |
| } |
| |
| if (vsi->type == ICE_VSI_PF && ice_is_adq_active(pf)) |
| numtc = vsi->all_numtc; |
| |
| if (netdev_set_num_tc(netdev, numtc)) |
| return; |
| |
| dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg; |
| |
| ice_for_each_traffic_class(i) |
| if (vsi->tc_cfg.ena_tc & BIT(i)) |
| netdev_set_tc_queue(netdev, |
| vsi->tc_cfg.tc_info[i].netdev_tc, |
| vsi->tc_cfg.tc_info[i].qcount_tx, |
| vsi->tc_cfg.tc_info[i].qoffset); |
| /* setup TC queue map for CHNL TCs */ |
| ice_for_each_chnl_tc(i) { |
| if (!(vsi->all_enatc & BIT(i))) |
| break; |
| if (!vsi->mqprio_qopt.qopt.count[i]) |
| break; |
| netdev_set_tc_queue(netdev, i, |
| vsi->mqprio_qopt.qopt.count[i], |
| vsi->mqprio_qopt.qopt.offset[i]); |
| } |
| |
| if (test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) |
| return; |
| |
| for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { |
| u8 ets_tc = dcbcfg->etscfg.prio_table[i]; |
| |
| /* Get the mapped netdev TC# for the UP */ |
| netdev_tc = vsi->tc_cfg.tc_info[ets_tc].netdev_tc; |
| netdev_set_prio_tc_map(netdev, i, netdev_tc); |
| } |
| } |
| |
| /** |
| * ice_vsi_setup_q_map_mqprio - Prepares mqprio based tc_config |
| * @vsi: the VSI being configured, |
| * @ctxt: VSI context structure |
| * @ena_tc: number of traffic classes to enable |
| * |
| * Prepares VSI tc_config to have queue configurations based on MQPRIO options. |
| */ |
| static void |
| ice_vsi_setup_q_map_mqprio(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt, |
| u8 ena_tc) |
| { |
| u16 pow, offset = 0, qcount_tx = 0, qcount_rx = 0, qmap; |
| u16 tc0_offset = vsi->mqprio_qopt.qopt.offset[0]; |
| int tc0_qcount = vsi->mqprio_qopt.qopt.count[0]; |
| u8 netdev_tc = 0; |
| int i; |
| |
| vsi->tc_cfg.ena_tc = ena_tc ? ena_tc : 1; |
| |
| pow = order_base_2(tc0_qcount); |
| qmap = ((tc0_offset << ICE_AQ_VSI_TC_Q_OFFSET_S) & |
| ICE_AQ_VSI_TC_Q_OFFSET_M) | |
| ((pow << ICE_AQ_VSI_TC_Q_NUM_S) & ICE_AQ_VSI_TC_Q_NUM_M); |
| |
| ice_for_each_traffic_class(i) { |
| if (!(vsi->tc_cfg.ena_tc & BIT(i))) { |
| /* TC is not enabled */ |
| vsi->tc_cfg.tc_info[i].qoffset = 0; |
| vsi->tc_cfg.tc_info[i].qcount_rx = 1; |
| vsi->tc_cfg.tc_info[i].qcount_tx = 1; |
| vsi->tc_cfg.tc_info[i].netdev_tc = 0; |
| ctxt->info.tc_mapping[i] = 0; |
| continue; |
| } |
| |
| offset = vsi->mqprio_qopt.qopt.offset[i]; |
| qcount_rx = vsi->mqprio_qopt.qopt.count[i]; |
| qcount_tx = vsi->mqprio_qopt.qopt.count[i]; |
| vsi->tc_cfg.tc_info[i].qoffset = offset; |
| vsi->tc_cfg.tc_info[i].qcount_rx = qcount_rx; |
| vsi->tc_cfg.tc_info[i].qcount_tx = qcount_tx; |
| vsi->tc_cfg.tc_info[i].netdev_tc = netdev_tc++; |
| } |
| |
| if (vsi->all_numtc && vsi->all_numtc != vsi->tc_cfg.numtc) { |
| ice_for_each_chnl_tc(i) { |
| if (!(vsi->all_enatc & BIT(i))) |
| continue; |
| offset = vsi->mqprio_qopt.qopt.offset[i]; |
| qcount_rx = vsi->mqprio_qopt.qopt.count[i]; |
| qcount_tx = vsi->mqprio_qopt.qopt.count[i]; |
| } |
| } |
| |
| /* Set actual Tx/Rx queue pairs */ |
| vsi->num_txq = offset + qcount_tx; |
| vsi->num_rxq = offset + qcount_rx; |
| |
| /* Setup queue TC[0].qmap for given VSI context */ |
| ctxt->info.tc_mapping[0] = cpu_to_le16(qmap); |
| ctxt->info.q_mapping[0] = cpu_to_le16(vsi->rxq_map[0]); |
| ctxt->info.q_mapping[1] = cpu_to_le16(tc0_qcount); |
| |
| /* Find queue count available for channel VSIs and starting offset |
| * for channel VSIs |
| */ |
| if (tc0_qcount && tc0_qcount < vsi->num_rxq) { |
| vsi->cnt_q_avail = vsi->num_rxq - tc0_qcount; |
| vsi->next_base_q = tc0_qcount; |
| } |
| dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_txq = %d\n", vsi->num_txq); |
| dev_dbg(ice_pf_to_dev(vsi->back), "vsi->num_rxq = %d\n", vsi->num_rxq); |
| dev_dbg(ice_pf_to_dev(vsi->back), "all_numtc %u, all_enatc: 0x%04x, tc_cfg.numtc %u\n", |
| vsi->all_numtc, vsi->all_enatc, vsi->tc_cfg.numtc); |
| } |
| |
| /** |
| * ice_vsi_cfg_tc - Configure VSI Tx Sched for given TC map |
| * @vsi: VSI to be configured |
| * @ena_tc: TC bitmap |
| * |
| * VSI queues expected to be quiesced before calling this function |
| */ |
| int ice_vsi_cfg_tc(struct ice_vsi *vsi, u8 ena_tc) |
| { |
| u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; |
| struct ice_pf *pf = vsi->back; |
| struct ice_vsi_ctx *ctx; |
| struct device *dev; |
| int i, ret = 0; |
| u8 num_tc = 0; |
| |
| dev = ice_pf_to_dev(pf); |
| if (vsi->tc_cfg.ena_tc == ena_tc && |
| vsi->mqprio_qopt.mode != TC_MQPRIO_MODE_CHANNEL) |
| return ret; |
| |
| ice_for_each_traffic_class(i) { |
| /* build bitmap of enabled TCs */ |
| if (ena_tc & BIT(i)) |
| num_tc++; |
| /* populate max_txqs per TC */ |
| max_txqs[i] = vsi->alloc_txq; |
| /* Update max_txqs if it is CHNL VSI, because alloc_t[r]xq are |
| * zero for CHNL VSI, hence use num_txq instead as max_txqs |
| */ |
| if (vsi->type == ICE_VSI_CHNL && |
| test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) |
| max_txqs[i] = vsi->num_txq; |
| } |
| |
| vsi->tc_cfg.ena_tc = ena_tc; |
| vsi->tc_cfg.numtc = num_tc; |
| |
| ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); |
| if (!ctx) |
| return -ENOMEM; |
| |
| ctx->vf_num = 0; |
| ctx->info = vsi->info; |
| |
| if (vsi->type == ICE_VSI_PF && |
| test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) |
| ice_vsi_setup_q_map_mqprio(vsi, ctx, ena_tc); |
| else |
| ice_vsi_setup_q_map(vsi, ctx); |
| |
| /* must to indicate which section of VSI context are being modified */ |
| ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_RXQ_MAP_VALID); |
| ret = ice_update_vsi(&pf->hw, vsi->idx, ctx, NULL); |
| if (ret) { |
| dev_info(dev, "Failed VSI Update\n"); |
| goto out; |
| } |
| |
| if (vsi->type == ICE_VSI_PF && |
| test_bit(ICE_FLAG_TC_MQPRIO, pf->flags)) |
| ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, 1, max_txqs); |
| else |
| ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, |
| vsi->tc_cfg.ena_tc, max_txqs); |
| |
| if (ret) { |
| dev_err(dev, "VSI %d failed TC config, error %d\n", |
| vsi->vsi_num, ret); |
| goto out; |
| } |
| ice_vsi_update_q_map(vsi, ctx); |
| vsi->info.valid_sections = 0; |
| |
| ice_vsi_cfg_netdev_tc(vsi, ena_tc); |
| out: |
| kfree(ctx); |
| return ret; |
| } |
| |
| /** |
| * ice_update_ring_stats - Update ring statistics |
| * @stats: stats to be updated |
| * @pkts: number of processed packets |
| * @bytes: number of processed bytes |
| * |
| * This function assumes that caller has acquired a u64_stats_sync lock. |
| */ |
| static void ice_update_ring_stats(struct ice_q_stats *stats, u64 pkts, u64 bytes) |
| { |
| stats->bytes += bytes; |
| stats->pkts += pkts; |
| } |
| |
| /** |
| * ice_update_tx_ring_stats - Update Tx ring specific counters |
| * @tx_ring: ring to update |
| * @pkts: number of processed packets |
| * @bytes: number of processed bytes |
| */ |
| void ice_update_tx_ring_stats(struct ice_tx_ring *tx_ring, u64 pkts, u64 bytes) |
| { |
| u64_stats_update_begin(&tx_ring->syncp); |
| ice_update_ring_stats(&tx_ring->stats, pkts, bytes); |
| u64_stats_update_end(&tx_ring->syncp); |
| } |
| |
| /** |
| * ice_update_rx_ring_stats - Update Rx ring specific counters |
| * @rx_ring: ring to update |
| * @pkts: number of processed packets |
| * @bytes: number of processed bytes |
| */ |
| void ice_update_rx_ring_stats(struct ice_rx_ring *rx_ring, u64 pkts, u64 bytes) |
| { |
| u64_stats_update_begin(&rx_ring->syncp); |
| ice_update_ring_stats(&rx_ring->stats, pkts, bytes); |
| u64_stats_update_end(&rx_ring->syncp); |
| } |
| |
| /** |
| * ice_is_dflt_vsi_in_use - check if the default forwarding VSI is being used |
| * @sw: switch to check if its default forwarding VSI is free |
| * |
| * Return true if the default forwarding VSI is already being used, else returns |
| * false signalling that it's available to use. |
| */ |
| bool ice_is_dflt_vsi_in_use(struct ice_sw *sw) |
| { |
| return (sw->dflt_vsi && sw->dflt_vsi_ena); |
| } |
| |
| /** |
| * ice_is_vsi_dflt_vsi - check if the VSI passed in is the default VSI |
| * @sw: switch for the default forwarding VSI to compare against |
| * @vsi: VSI to compare against default forwarding VSI |
| * |
| * If this VSI passed in is the default forwarding VSI then return true, else |
| * return false |
| */ |
| bool ice_is_vsi_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi) |
| { |
| return (sw->dflt_vsi == vsi && sw->dflt_vsi_ena); |
| } |
| |
| /** |
| * ice_set_dflt_vsi - set the default forwarding VSI |
| * @sw: switch used to assign the default forwarding VSI |
| * @vsi: VSI getting set as the default forwarding VSI on the switch |
| * |
| * If the VSI passed in is already the default VSI and it's enabled just return |
| * success. |
| * |
| * If there is already a default VSI on the switch and it's enabled then return |
| * -EEXIST since there can only be one default VSI per switch. |
| * |
| * Otherwise try to set the VSI passed in as the switch's default VSI and |
| * return the result. |
| */ |
| int ice_set_dflt_vsi(struct ice_sw *sw, struct ice_vsi *vsi) |
| { |
| struct device *dev; |
| int status; |
| |
| if (!sw || !vsi) |
| return -EINVAL; |
| |
| dev = ice_pf_to_dev(vsi->back); |
| |
| /* the VSI passed in is already the default VSI */ |
| if (ice_is_vsi_dflt_vsi(sw, vsi)) { |
| dev_dbg(dev, "VSI %d passed in is already the default forwarding VSI, nothing to do\n", |
| vsi->vsi_num); |
| return 0; |
| } |
| |
| /* another VSI is already the default VSI for this switch */ |
| if (ice_is_dflt_vsi_in_use(sw)) { |
| dev_err(dev, "Default forwarding VSI %d already in use, disable it and try again\n", |
| sw->dflt_vsi->vsi_num); |
| return -EEXIST; |
| } |
| |
| status = ice_cfg_dflt_vsi(&vsi->back->hw, vsi->idx, true, ICE_FLTR_RX); |
| if (status) { |
| dev_err(dev, "Failed to set VSI %d as the default forwarding VSI, error %d\n", |
| vsi->vsi_num, status); |
| return status; |
| } |
| |
| sw->dflt_vsi = vsi; |
| sw->dflt_vsi_ena = true; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_clear_dflt_vsi - clear the default forwarding VSI |
| * @sw: switch used to clear the default VSI |
| * |
| * If the switch has no default VSI or it's not enabled then return error. |
| * |
| * Otherwise try to clear the default VSI and return the result. |
| */ |
| int ice_clear_dflt_vsi(struct ice_sw *sw) |
| { |
| struct ice_vsi *dflt_vsi; |
| struct device *dev; |
| int status; |
| |
| if (!sw) |
| return -EINVAL; |
| |
| dev = ice_pf_to_dev(sw->pf); |
| |
| dflt_vsi = sw->dflt_vsi; |
| |
| /* there is no default VSI configured */ |
| if (!ice_is_dflt_vsi_in_use(sw)) |
| return -ENODEV; |
| |
| status = ice_cfg_dflt_vsi(&dflt_vsi->back->hw, dflt_vsi->idx, false, |
| ICE_FLTR_RX); |
| if (status) { |
| dev_err(dev, "Failed to clear the default forwarding VSI %d, error %d\n", |
| dflt_vsi->vsi_num, status); |
| return -EIO; |
| } |
| |
| sw->dflt_vsi = NULL; |
| sw->dflt_vsi_ena = false; |
| |
| return 0; |
| } |
| |
| /** |
| * ice_get_link_speed_mbps - get link speed in Mbps |
| * @vsi: the VSI whose link speed is being queried |
| * |
| * Return current VSI link speed and 0 if the speed is unknown. |
| */ |
| int ice_get_link_speed_mbps(struct ice_vsi *vsi) |
| { |
| switch (vsi->port_info->phy.link_info.link_speed) { |
| case ICE_AQ_LINK_SPEED_100GB: |
| return SPEED_100000; |
| case ICE_AQ_LINK_SPEED_50GB: |
| return SPEED_50000; |
| case ICE_AQ_LINK_SPEED_40GB: |
| return SPEED_40000; |
| case ICE_AQ_LINK_SPEED_25GB: |
| return SPEED_25000; |
| case ICE_AQ_LINK_SPEED_20GB: |
| return SPEED_20000; |
| case ICE_AQ_LINK_SPEED_10GB: |
| return SPEED_10000; |
| case ICE_AQ_LINK_SPEED_5GB: |
| return SPEED_5000; |
| case ICE_AQ_LINK_SPEED_2500MB: |
| return SPEED_2500; |
| case ICE_AQ_LINK_SPEED_1000MB: |
| return SPEED_1000; |
| case ICE_AQ_LINK_SPEED_100MB: |
| return SPEED_100; |
| case ICE_AQ_LINK_SPEED_10MB: |
| return SPEED_10; |
| case ICE_AQ_LINK_SPEED_UNKNOWN: |
| default: |
| return 0; |
| } |
| } |
| |
| /** |
| * ice_get_link_speed_kbps - get link speed in Kbps |
| * @vsi: the VSI whose link speed is being queried |
| * |
| * Return current VSI link speed and 0 if the speed is unknown. |
| */ |
| int ice_get_link_speed_kbps(struct ice_vsi *vsi) |
| { |
| int speed_mbps; |
| |
| speed_mbps = ice_get_link_speed_mbps(vsi); |
| |
| return speed_mbps * 1000; |
| } |
| |
| /** |
| * ice_set_min_bw_limit - setup minimum BW limit for Tx based on min_tx_rate |
| * @vsi: VSI to be configured |
| * @min_tx_rate: min Tx rate in Kbps to be configured as BW limit |
| * |
| * If the min_tx_rate is specified as 0 that means to clear the minimum BW limit |
| * profile, otherwise a non-zero value will force a minimum BW limit for the VSI |
| * on TC 0. |
| */ |
| int ice_set_min_bw_limit(struct ice_vsi *vsi, u64 min_tx_rate) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int status; |
| int speed; |
| |
| dev = ice_pf_to_dev(pf); |
| if (!vsi->port_info) { |
| dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", |
| vsi->idx, vsi->type); |
| return -EINVAL; |
| } |
| |
| speed = ice_get_link_speed_kbps(vsi); |
| if (min_tx_rate > (u64)speed) { |
| dev_err(dev, "invalid min Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", |
| min_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, |
| speed); |
| return -EINVAL; |
| } |
| |
| /* Configure min BW for VSI limit */ |
| if (min_tx_rate) { |
| status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, |
| ICE_MIN_BW, min_tx_rate); |
| if (status) { |
| dev_err(dev, "failed to set min Tx rate(%llu Kbps) for %s %d\n", |
| min_tx_rate, ice_vsi_type_str(vsi->type), |
| vsi->idx); |
| return status; |
| } |
| |
| dev_dbg(dev, "set min Tx rate(%llu Kbps) for %s\n", |
| min_tx_rate, ice_vsi_type_str(vsi->type)); |
| } else { |
| status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, |
| vsi->idx, 0, |
| ICE_MIN_BW); |
| if (status) { |
| dev_err(dev, "failed to clear min Tx rate configuration for %s %d\n", |
| ice_vsi_type_str(vsi->type), vsi->idx); |
| return status; |
| } |
| |
| dev_dbg(dev, "cleared min Tx rate configuration for %s %d\n", |
| ice_vsi_type_str(vsi->type), vsi->idx); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_set_max_bw_limit - setup maximum BW limit for Tx based on max_tx_rate |
| * @vsi: VSI to be configured |
| * @max_tx_rate: max Tx rate in Kbps to be configured as BW limit |
| * |
| * If the max_tx_rate is specified as 0 that means to clear the maximum BW limit |
| * profile, otherwise a non-zero value will force a maximum BW limit for the VSI |
| * on TC 0. |
| */ |
| int ice_set_max_bw_limit(struct ice_vsi *vsi, u64 max_tx_rate) |
| { |
| struct ice_pf *pf = vsi->back; |
| struct device *dev; |
| int status; |
| int speed; |
| |
| dev = ice_pf_to_dev(pf); |
| if (!vsi->port_info) { |
| dev_dbg(dev, "VSI %d, type %u specified doesn't have valid port_info\n", |
| vsi->idx, vsi->type); |
| return -EINVAL; |
| } |
| |
| speed = ice_get_link_speed_kbps(vsi); |
| if (max_tx_rate > (u64)speed) { |
| dev_err(dev, "invalid max Tx rate %llu Kbps specified for %s %d is greater than current link speed %u Kbps\n", |
| max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx, |
| speed); |
| return -EINVAL; |
| } |
| |
| /* Configure max BW for VSI limit */ |
| if (max_tx_rate) { |
| status = ice_cfg_vsi_bw_lmt_per_tc(vsi->port_info, vsi->idx, 0, |
| ICE_MAX_BW, max_tx_rate); |
| if (status) { |
| dev_err(dev, "failed setting max Tx rate(%llu Kbps) for %s %d\n", |
| max_tx_rate, ice_vsi_type_str(vsi->type), |
| vsi->idx); |
| return status; |
| } |
| |
| dev_dbg(dev, "set max Tx rate(%llu Kbps) for %s %d\n", |
| max_tx_rate, ice_vsi_type_str(vsi->type), vsi->idx); |
| } else { |
| status = ice_cfg_vsi_bw_dflt_lmt_per_tc(vsi->port_info, |
| vsi->idx, 0, |
| ICE_MAX_BW); |
| if (status) { |
| dev_err(dev, "failed clearing max Tx rate configuration for %s %d\n", |
| ice_vsi_type_str(vsi->type), vsi->idx); |
| return status; |
| } |
| |
| dev_dbg(dev, "cleared max Tx rate configuration for %s %d\n", |
| ice_vsi_type_str(vsi->type), vsi->idx); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_set_link - turn on/off physical link |
| * @vsi: VSI to modify physical link on |
| * @ena: turn on/off physical link |
| */ |
| int ice_set_link(struct ice_vsi *vsi, bool ena) |
| { |
| struct device *dev = ice_pf_to_dev(vsi->back); |
| struct ice_port_info *pi = vsi->port_info; |
| struct ice_hw *hw = pi->hw; |
| int status; |
| |
| if (vsi->type != ICE_VSI_PF) |
| return -EINVAL; |
| |
| status = ice_aq_set_link_restart_an(pi, ena, NULL); |
| |
| /* if link is owned by manageability, FW will return ICE_AQ_RC_EMODE. |
| * this is not a fatal error, so print a warning message and return |
| * a success code. Return an error if FW returns an error code other |
| * than ICE_AQ_RC_EMODE |
| */ |
| if (status == -EIO) { |
| if (hw->adminq.sq_last_status == ICE_AQ_RC_EMODE) |
| dev_warn(dev, "can't set link to %s, err %d aq_err %s. not fatal, continuing\n", |
| (ena ? "ON" : "OFF"), status, |
| ice_aq_str(hw->adminq.sq_last_status)); |
| } else if (status) { |
| dev_err(dev, "can't set link to %s, err %d aq_err %s\n", |
| (ena ? "ON" : "OFF"), status, |
| ice_aq_str(hw->adminq.sq_last_status)); |
| return status; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * ice_is_feature_supported |
| * @pf: pointer to the struct ice_pf instance |
| * @f: feature enum to be checked |
| * |
| * returns true if feature is supported, false otherwise |
| */ |
| bool ice_is_feature_supported(struct ice_pf *pf, enum ice_feature f) |
| { |
| if (f < 0 || f >= ICE_F_MAX) |
| return false; |
| |
| return test_bit(f, pf->features); |
| } |
| |
| /** |
| * ice_set_feature_support |
| * @pf: pointer to the struct ice_pf instance |
| * @f: feature enum to set |
| */ |
| static void ice_set_feature_support(struct ice_pf *pf, enum ice_feature f) |
| { |
| if (f < 0 || f >= ICE_F_MAX) |
| return; |
| |
| set_bit(f, pf->features); |
| } |
| |
| /** |
| * ice_clear_feature_support |
| * @pf: pointer to the struct ice_pf instance |
| * @f: feature enum to clear |
| */ |
| void ice_clear_feature_support(struct ice_pf *pf, enum ice_feature f) |
| { |
| if (f < 0 || f >= ICE_F_MAX) |
| return; |
| |
| clear_bit(f, pf->features); |
| } |
| |
| /** |
| * ice_init_feature_support |
| * @pf: pointer to the struct ice_pf instance |
| * |
| * called during init to setup supported feature |
| */ |
| void ice_init_feature_support(struct ice_pf *pf) |
| { |
| switch (pf->hw.device_id) { |
| case ICE_DEV_ID_E810C_BACKPLANE: |
| case ICE_DEV_ID_E810C_QSFP: |
| case ICE_DEV_ID_E810C_SFP: |
| ice_set_feature_support(pf, ICE_F_DSCP); |
| if (ice_is_e810t(&pf->hw)) |
| ice_set_feature_support(pf, ICE_F_SMA_CTRL); |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /** |
| * ice_vsi_update_security - update security block in VSI |
| * @vsi: pointer to VSI structure |
| * @fill: function pointer to fill ctx |
| */ |
| int |
| ice_vsi_update_security(struct ice_vsi *vsi, void (*fill)(struct ice_vsi_ctx *)) |
| { |
| struct ice_vsi_ctx ctx = { 0 }; |
| |
| ctx.info = vsi->info; |
| ctx.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_SECURITY_VALID); |
| fill(&ctx); |
| |
| if (ice_update_vsi(&vsi->back->hw, vsi->idx, &ctx, NULL)) |
| return -ENODEV; |
| |
| vsi->info = ctx.info; |
| return 0; |
| } |
| |
| /** |
| * ice_vsi_ctx_set_antispoof - set antispoof function in VSI ctx |
| * @ctx: pointer to VSI ctx structure |
| */ |
| void ice_vsi_ctx_set_antispoof(struct ice_vsi_ctx *ctx) |
| { |
| ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF | |
| (ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << |
| ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); |
| } |
| |
| /** |
| * ice_vsi_ctx_clear_antispoof - clear antispoof function in VSI ctx |
| * @ctx: pointer to VSI ctx structure |
| */ |
| void ice_vsi_ctx_clear_antispoof(struct ice_vsi_ctx *ctx) |
| { |
| ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF & |
| ~(ICE_AQ_VSI_SEC_TX_VLAN_PRUNE_ENA << |
| ICE_AQ_VSI_SEC_TX_PRUNE_ENA_S); |
| } |
| |
| /** |
| * ice_vsi_ctx_set_allow_override - allow destination override on VSI |
| * @ctx: pointer to VSI ctx structure |
| */ |
| void ice_vsi_ctx_set_allow_override(struct ice_vsi_ctx *ctx) |
| { |
| ctx->info.sec_flags |= ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; |
| } |
| |
| /** |
| * ice_vsi_ctx_clear_allow_override - turn off destination override on VSI |
| * @ctx: pointer to VSI ctx structure |
| */ |
| void ice_vsi_ctx_clear_allow_override(struct ice_vsi_ctx *ctx) |
| { |
| ctx->info.sec_flags &= ~ICE_AQ_VSI_SEC_FLAG_ALLOW_DEST_OVRD; |
| } |