diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lib.c')
-rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.c | 516 |
1 files changed, 301 insertions, 215 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 1041fa2a7767..fa61203bee26 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -20,7 +20,7 @@ static int ice_setup_rx_ctx(struct ice_ring *ring) u16 pf_q; int err; - /* what is RX queue number in global space of 2K Rx queues */ + /* what is Rx queue number in global space of 2K Rx queues */ pf_q = vsi->rxq_map[ring->q_index]; /* clear the context structure first */ @@ -174,15 +174,15 @@ static int ice_pf_rxq_wait(struct ice_pf *pf, int pf_q, bool ena) { int i; - for (i = 0; i < ICE_Q_WAIT_RETRY_LIMIT; i++) { + for (i = 0; i < ICE_Q_WAIT_MAX_RETRY; i++) { u32 rx_reg = rd32(&pf->hw, QRX_CTRL(pf_q)); if (ena == !!(rx_reg & QRX_CTRL_QENA_STAT_M)) break; - usleep_range(10, 20); + usleep_range(20, 40); } - if (i >= ICE_Q_WAIT_RETRY_LIMIT) + if (i >= ICE_Q_WAIT_MAX_RETRY) return -ETIMEDOUT; return 0; @@ -249,12 +249,12 @@ static int ice_vsi_alloc_arrays(struct ice_vsi *vsi, bool alloc_qvectors) /* allocate memory for both Tx and Rx ring pointers */ vsi->tx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_txq, - sizeof(struct ice_ring *), GFP_KERNEL); + sizeof(*vsi->tx_rings), GFP_KERNEL); if (!vsi->tx_rings) goto err_txrings; vsi->rx_rings = devm_kcalloc(&pf->pdev->dev, vsi->alloc_rxq, - sizeof(struct ice_ring *), GFP_KERNEL); + sizeof(*vsi->rx_rings), GFP_KERNEL); if (!vsi->rx_rings) goto err_rxrings; @@ -262,7 +262,7 @@ static int ice_vsi_alloc_arrays(struct ice_vsi *vsi, bool alloc_qvectors) /* allocate memory for q_vector pointers */ vsi->q_vectors = devm_kcalloc(&pf->pdev->dev, vsi->num_q_vectors, - sizeof(struct ice_q_vector *), + sizeof(*vsi->q_vectors), GFP_KERNEL); if (!vsi->q_vectors) goto err_vectors; @@ -348,19 +348,25 @@ static int ice_get_free_slot(void *array, int size, int curr) void ice_vsi_delete(struct ice_vsi *vsi) { struct ice_pf *pf = vsi->back; - struct ice_vsi_ctx ctxt; + struct ice_vsi_ctx *ctxt; enum ice_status status; + ctxt = devm_kzalloc(&pf->pdev->dev, 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; + ctxt->vf_num = vsi->vf_id; + ctxt->vsi_num = vsi->vsi_num; - memcpy(&ctxt.info, &vsi->info, sizeof(struct ice_aqc_vsi_props)); + memcpy(&ctxt->info, &vsi->info, sizeof(ctxt->info)); - status = ice_free_vsi(&pf->hw, vsi->idx, &ctxt, false, NULL); + status = ice_free_vsi(&pf->hw, vsi->idx, ctxt, false, NULL); if (status) dev_err(&pf->pdev->dev, "Failed to delete VSI %i in FW\n", vsi->vsi_num); + + devm_kfree(&pf->pdev->dev, ctxt); } /** @@ -514,110 +520,89 @@ unlock_pf: } /** - * ice_vsi_get_qs_contig - Assign a contiguous chunk of queues to VSI - * @vsi: the VSI getting queues + * __ice_vsi_get_qs_contig - Assign a contiguous chunk of queues to VSI + * @qs_cfg: gathered variables needed for PF->VSI queues assignment * - * Return 0 on success and a negative value on error + * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap */ -static int ice_vsi_get_qs_contig(struct ice_vsi *vsi) +static int __ice_vsi_get_qs_contig(struct ice_qs_cfg *qs_cfg) { - struct ice_pf *pf = vsi->back; - int offset, ret = 0; + int offset, i; - mutex_lock(&pf->avail_q_mutex); - /* look for contiguous block of queues for Tx */ - offset = bitmap_find_next_zero_area(pf->avail_txqs, ICE_MAX_TXQS, - 0, vsi->alloc_txq, 0); - if (offset < ICE_MAX_TXQS) { - int i; - - bitmap_set(pf->avail_txqs, offset, vsi->alloc_txq); - for (i = 0; i < vsi->alloc_txq; i++) - vsi->txq_map[i] = i + offset; - } else { - ret = -ENOMEM; - vsi->tx_mapping_mode = ICE_VSI_MAP_SCATTER; + mutex_lock(qs_cfg->qs_mutex); + offset = bitmap_find_next_zero_area(qs_cfg->pf_map, qs_cfg->pf_map_size, + 0, qs_cfg->q_count, 0); + if (offset >= qs_cfg->pf_map_size) { + mutex_unlock(qs_cfg->qs_mutex); + return -ENOMEM; } - /* look for contiguous block of queues for Rx */ - offset = bitmap_find_next_zero_area(pf->avail_rxqs, ICE_MAX_RXQS, - 0, vsi->alloc_rxq, 0); - if (offset < ICE_MAX_RXQS) { - int i; - - bitmap_set(pf->avail_rxqs, offset, vsi->alloc_rxq); - for (i = 0; i < vsi->alloc_rxq; i++) - vsi->rxq_map[i] = i + offset; - } else { - ret = -ENOMEM; - vsi->rx_mapping_mode = ICE_VSI_MAP_SCATTER; - } - mutex_unlock(&pf->avail_q_mutex); + bitmap_set(qs_cfg->pf_map, offset, qs_cfg->q_count); + for (i = 0; i < qs_cfg->q_count; i++) + qs_cfg->vsi_map[i + qs_cfg->vsi_map_offset] = i + offset; + mutex_unlock(qs_cfg->qs_mutex); - return ret; + return 0; } /** - * ice_vsi_get_qs_scatter - Assign a scattered queues to VSI - * @vsi: the VSI getting queues + * __ice_vsi_get_qs_sc - Assign a scattered queues from PF to VSI + * @qs_cfg: gathered variables needed for PF->VSI queues assignment * - * Return 0 on success and a negative value on error + * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap */ -static int ice_vsi_get_qs_scatter(struct ice_vsi *vsi) +static int __ice_vsi_get_qs_sc(struct ice_qs_cfg *qs_cfg) { - struct ice_pf *pf = vsi->back; int i, index = 0; - mutex_lock(&pf->avail_q_mutex); - - if (vsi->tx_mapping_mode == ICE_VSI_MAP_SCATTER) { - for (i = 0; i < vsi->alloc_txq; i++) { - index = find_next_zero_bit(pf->avail_txqs, - ICE_MAX_TXQS, index); - if (index < ICE_MAX_TXQS) { - set_bit(index, pf->avail_txqs); - vsi->txq_map[i] = index; - } else { - goto err_scatter_tx; - } - } - } - - if (vsi->rx_mapping_mode == ICE_VSI_MAP_SCATTER) { - for (i = 0; i < vsi->alloc_rxq; i++) { - index = find_next_zero_bit(pf->avail_rxqs, - ICE_MAX_RXQS, index); - if (index < ICE_MAX_RXQS) { - set_bit(index, pf->avail_rxqs); - vsi->rxq_map[i] = index; - } else { - goto err_scatter_rx; - } - } + mutex_lock(qs_cfg->qs_mutex); + for (i = 0; i < qs_cfg->q_count; i++) { + index = find_next_zero_bit(qs_cfg->pf_map, + qs_cfg->pf_map_size, index); + if (index >= qs_cfg->pf_map_size) + goto err_scatter; + set_bit(index, qs_cfg->pf_map); + qs_cfg->vsi_map[i + qs_cfg->vsi_map_offset] = index; } + mutex_unlock(qs_cfg->qs_mutex); - mutex_unlock(&pf->avail_q_mutex); return 0; - -err_scatter_rx: - /* unflag any queues we have grabbed (i is failed position) */ +err_scatter: for (index = 0; index < i; index++) { - clear_bit(vsi->rxq_map[index], pf->avail_rxqs); - vsi->rxq_map[index] = 0; - } - i = vsi->alloc_txq; -err_scatter_tx: - /* i is either position of failed attempt or vsi->alloc_txq */ - for (index = 0; index < i; index++) { - clear_bit(vsi->txq_map[index], pf->avail_txqs); - vsi->txq_map[index] = 0; + clear_bit(qs_cfg->vsi_map[index], qs_cfg->pf_map); + qs_cfg->vsi_map[index + qs_cfg->vsi_map_offset] = 0; } + mutex_unlock(qs_cfg->qs_mutex); - mutex_unlock(&pf->avail_q_mutex); return -ENOMEM; } /** + * __ice_vsi_get_qs - helper function for assigning queues from PF to VSI + * @qs_cfg: gathered variables needed for PF->VSI queues assignment + * + * This is an internal function for assigning queues from the PF to VSI and + * initially tries to find contiguous space. If it is not successful to find + * contiguous space, then it tries with the scatter approach. + * + * Return 0 on success and -ENOMEM in case of no left space in PF queue bitmap + */ +static int __ice_vsi_get_qs(struct ice_qs_cfg *qs_cfg) +{ + int ret = 0; + + ret = __ice_vsi_get_qs_contig(qs_cfg); + if (ret) { + /* contig failed, so try with scatter approach */ + qs_cfg->mapping_mode = ICE_VSI_MAP_SCATTER; + qs_cfg->q_count = min_t(u16, qs_cfg->q_count, + qs_cfg->scatter_count); + ret = __ice_vsi_get_qs_sc(qs_cfg); + } + return ret; +} + +/** * ice_vsi_get_qs - Assign queues from PF to VSI * @vsi: the VSI to assign queues to * @@ -625,25 +610,35 @@ err_scatter_tx: */ 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 = ICE_MAX_TXQS, + .q_count = vsi->alloc_txq, + .scatter_count = ICE_MAX_SCATTER_TXQS, + .vsi_map = vsi->txq_map, + .vsi_map_offset = 0, + .mapping_mode = vsi->tx_mapping_mode + }; + struct ice_qs_cfg rx_qs_cfg = { + .qs_mutex = &pf->avail_q_mutex, + .pf_map = pf->avail_rxqs, + .pf_map_size = ICE_MAX_RXQS, + .q_count = vsi->alloc_rxq, + .scatter_count = ICE_MAX_SCATTER_RXQS, + .vsi_map = vsi->rxq_map, + .vsi_map_offset = 0, + .mapping_mode = vsi->rx_mapping_mode + }; int ret = 0; vsi->tx_mapping_mode = ICE_VSI_MAP_CONTIG; vsi->rx_mapping_mode = ICE_VSI_MAP_CONTIG; - /* NOTE: ice_vsi_get_qs_contig() will set the Rx/Tx mapping - * modes individually to scatter if assigning contiguous queues - * to Rx or Tx fails - */ - ret = ice_vsi_get_qs_contig(vsi); - if (ret < 0) { - if (vsi->tx_mapping_mode == ICE_VSI_MAP_SCATTER) - vsi->alloc_txq = max_t(u16, vsi->alloc_txq, - ICE_MAX_SCATTER_TXQS); - if (vsi->rx_mapping_mode == ICE_VSI_MAP_SCATTER) - vsi->alloc_rxq = max_t(u16, vsi->alloc_rxq, - ICE_MAX_SCATTER_RXQS); - ret = ice_vsi_get_qs_scatter(vsi); - } + ret = __ice_vsi_get_qs(&tx_qs_cfg); + if (!ret) + ret = __ice_vsi_get_qs(&rx_qs_cfg); return ret; } @@ -774,11 +769,13 @@ static void ice_set_dflt_vsi_ctx(struct ice_vsi_ctx *ctxt) */ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) { - u16 offset = 0, qmap = 0, numq_tc; - u16 pow = 0, max_rss = 0, qcount; + u16 offset = 0, qmap = 0, tx_count = 0; u16 qcount_tx = vsi->alloc_txq; u16 qcount_rx = vsi->alloc_rxq; + u16 tx_numq_tc, rx_numq_tc; + u16 pow = 0, max_rss = 0; bool ena_tc0 = false; + u8 netdev_tc = 0; int i; /* at least TC0 should be enabled by default */ @@ -794,7 +791,12 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) vsi->tc_cfg.ena_tc |= 1; } - numq_tc = qcount_rx / vsi->tc_cfg.numtc; + rx_numq_tc = qcount_rx / vsi->tc_cfg.numtc; + if (!rx_numq_tc) + rx_numq_tc = 1; + tx_numq_tc = qcount_tx / vsi->tc_cfg.numtc; + if (!tx_numq_tc) + tx_numq_tc = 1; /* 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. @@ -808,7 +810,8 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) * Setup number and offset of Rx queues for all TCs for the VSI */ - qcount = numq_tc; + qcount_rx = rx_numq_tc; + /* qcount will change if RSS is enabled */ if (test_bit(ICE_FLAG_RSS_ENA, vsi->back->flags)) { if (vsi->type == ICE_VSI_PF || vsi->type == ICE_VSI_VF) { @@ -816,37 +819,41 @@ static void ice_vsi_setup_q_map(struct ice_vsi *vsi, struct ice_vsi_ctx *ctxt) max_rss = ICE_MAX_LG_RSS_QS; else max_rss = ICE_MAX_SMALL_RSS_QS; - qcount = min_t(int, numq_tc, max_rss); - qcount = min_t(int, qcount, vsi->rss_size); + qcount_rx = min_t(int, rx_numq_tc, max_rss); + qcount_rx = min_t(int, qcount_rx, vsi->rss_size); } } /* find the (rounded up) power-of-2 of qcount */ - pow = order_base_2(qcount); + pow = order_base_2(qcount_rx); for (i = 0; i < ICE_MAX_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 = 1; + 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 = qcount; + vsi->tc_cfg.tc_info[i].qcount_rx = qcount_rx; + vsi->tc_cfg.tc_info[i].qcount_tx = tx_numq_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 += qcount; + offset += qcount_rx; + tx_count += tx_numq_tc; ctxt->info.tc_mapping[i] = cpu_to_le16(qmap); } - - vsi->num_txq = qcount_tx; vsi->num_rxq = offset; + vsi->num_txq = tx_count; if (vsi->type == ICE_VSI_VF && vsi->num_txq != vsi->num_rxq) { dev_dbg(&vsi->back->pdev->dev, "VF VSI should have same number of Tx and Rx queues. Hence making them equal\n"); @@ -907,37 +914,41 @@ static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi) */ static int ice_vsi_init(struct ice_vsi *vsi) { - struct ice_vsi_ctx ctxt = { 0 }; struct ice_pf *pf = vsi->back; struct ice_hw *hw = &pf->hw; + struct ice_vsi_ctx *ctxt; int ret = 0; + ctxt = devm_kzalloc(&pf->pdev->dev, sizeof(*ctxt), GFP_KERNEL); + if (!ctxt) + return -ENOMEM; + switch (vsi->type) { case ICE_VSI_PF: - ctxt.flags = ICE_AQ_VSI_TYPE_PF; + ctxt->flags = ICE_AQ_VSI_TYPE_PF; break; case ICE_VSI_VF: - ctxt.flags = ICE_AQ_VSI_TYPE_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; + ctxt->vf_num = vsi->vf_id + hw->func_caps.vf_base_id; break; default: return -ENODEV; } - ice_set_dflt_vsi_ctx(&ctxt); + ice_set_dflt_vsi_ctx(ctxt); /* 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; + 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)) - ice_set_rss_vsi_ctx(&ctxt, vsi); + ice_set_rss_vsi_ctx(ctxt, vsi); - ctxt.info.sw_id = vsi->port_info->sw_id; - ice_vsi_setup_q_map(vsi, &ctxt); + ctxt->info.sw_id = vsi->port_info->sw_id; + ice_vsi_setup_q_map(vsi, ctxt); - ret = ice_add_vsi(hw, vsi->idx, &ctxt, NULL); + ret = ice_add_vsi(hw, vsi->idx, ctxt, NULL); if (ret) { dev_err(&pf->pdev->dev, "Add VSI failed, err %d\n", ret); @@ -945,11 +956,12 @@ static int ice_vsi_init(struct ice_vsi *vsi) } /* keep context for update VSI operations */ - vsi->info = ctxt.info; + vsi->info = ctxt->info; /* record VSI number returned */ - vsi->vsi_num = ctxt.vsi_num; + vsi->vsi_num = ctxt->vsi_num; + devm_kfree(&pf->pdev->dev, ctxt); return ret; } @@ -1000,7 +1012,7 @@ void ice_vsi_free_q_vectors(struct ice_vsi *vsi) * @vsi: the VSI being configured * @v_idx: index of the vector in the VSI struct * - * We allocate one q_vector. If allocation fails we return -ENOMEM. + * We allocate one q_vector. If allocation fails we return -ENOMEM. */ static int ice_vsi_alloc_q_vector(struct ice_vsi *vsi, int v_idx) { @@ -1039,7 +1051,7 @@ out: * ice_vsi_alloc_q_vectors - Allocate memory for interrupt vectors * @vsi: the VSI being configured * - * We allocate one q_vector per queue interrupt. If allocation fails we + * We allocate one q_vector per queue interrupt. If allocation fails we * return -ENOMEM. */ static int ice_vsi_alloc_q_vectors(struct ice_vsi *vsi) @@ -1188,7 +1200,7 @@ static int ice_vsi_alloc_rings(struct ice_vsi *vsi) struct ice_pf *pf = vsi->back; int i; - /* Allocate tx_rings */ + /* Allocate Tx rings */ for (i = 0; i < vsi->alloc_txq; i++) { struct ice_ring *ring; @@ -1207,7 +1219,7 @@ static int ice_vsi_alloc_rings(struct ice_vsi *vsi) vsi->tx_rings[i] = ring; } - /* Allocate rx_rings */ + /* Allocate Rx rings */ for (i = 0; i < vsi->alloc_rxq; i++) { struct ice_ring *ring; @@ -1602,64 +1614,73 @@ setup_rings: /** * ice_vsi_cfg_txqs - Configure the VSI for Tx * @vsi: the VSI being configured + * @rings: Tx ring array to be configured + * @offset: offset within vsi->txq_map * * Return 0 on success and a negative value on error * Configure the Tx VSI for operation. */ -int ice_vsi_cfg_txqs(struct ice_vsi *vsi) +static int +ice_vsi_cfg_txqs(struct ice_vsi *vsi, struct ice_ring **rings, int offset) { struct ice_aqc_add_tx_qgrp *qg_buf; struct ice_aqc_add_txqs_perq *txq; struct ice_pf *pf = vsi->back; + u8 num_q_grps, q_idx = 0; enum ice_status status; u16 buf_len, i, pf_q; - int err = 0, tc = 0; - u8 num_q_grps; + int err = 0, tc; - buf_len = sizeof(struct ice_aqc_add_tx_qgrp); + buf_len = sizeof(*qg_buf); qg_buf = devm_kzalloc(&pf->pdev->dev, buf_len, GFP_KERNEL); if (!qg_buf) return -ENOMEM; - if (vsi->num_txq > ICE_MAX_TXQ_PER_TXQG) { - err = -EINVAL; - goto err_cfg_txqs; - } qg_buf->num_txqs = 1; num_q_grps = 1; - /* set up and configure the Tx queues */ - ice_for_each_txq(vsi, i) { - struct ice_tlan_ctx tlan_ctx = { 0 }; + /* set up and configure the Tx queues for each enabled TC */ + for (tc = 0; tc < ICE_MAX_TRAFFIC_CLASS; tc++) { + if (!(vsi->tc_cfg.ena_tc & BIT(tc))) + break; - pf_q = vsi->txq_map[i]; - ice_setup_tx_ctx(vsi->tx_rings[i], &tlan_ctx, pf_q); - /* copy context contents into the qg_buf */ - qg_buf->txqs[0].txq_id = cpu_to_le16(pf_q); - ice_set_ctx((u8 *)&tlan_ctx, qg_buf->txqs[0].txq_ctx, - ice_tlan_ctx_info); + for (i = 0; i < vsi->tc_cfg.tc_info[tc].qcount_tx; i++) { + struct ice_tlan_ctx tlan_ctx = { 0 }; + + pf_q = vsi->txq_map[q_idx + offset]; + ice_setup_tx_ctx(rings[q_idx], &tlan_ctx, pf_q); + /* copy context contents into the qg_buf */ + qg_buf->txqs[0].txq_id = cpu_to_le16(pf_q); + ice_set_ctx((u8 *)&tlan_ctx, qg_buf->txqs[0].txq_ctx, + ice_tlan_ctx_info); + + /* init queue specific tail reg. It is referred as + * transmit comm scheduler queue doorbell. + */ + rings[q_idx]->tail = + pf->hw.hw_addr + QTX_COMM_DBELL(pf_q); + status = ice_ena_vsi_txq(vsi->port_info, vsi->idx, tc, + num_q_grps, qg_buf, buf_len, + NULL); + if (status) { + dev_err(&vsi->back->pdev->dev, + "Failed to set LAN Tx queue context, error: %d\n", + status); + err = -ENODEV; + goto err_cfg_txqs; + } - /* init queue specific tail reg. It is referred as transmit - * comm scheduler queue doorbell. - */ - vsi->tx_rings[i]->tail = pf->hw.hw_addr + QTX_COMM_DBELL(pf_q); - status = ice_ena_vsi_txq(vsi->port_info, vsi->idx, tc, - num_q_grps, qg_buf, buf_len, NULL); - if (status) { - dev_err(&vsi->back->pdev->dev, - "Failed to set LAN Tx queue context, error: %d\n", - status); - err = -ENODEV; - goto err_cfg_txqs; - } + /* Add Tx Queue TEID into the VSI Tx ring from the + * response. This will complete configuring and + * enabling the queue. + */ + txq = &qg_buf->txqs[0]; + if (pf_q == le16_to_cpu(txq->txq_id)) + rings[q_idx]->txq_teid = + le32_to_cpu(txq->q_teid); - /* Add Tx Queue TEID into the VSI Tx ring from the response - * This will complete configuring and enabling the queue. - */ - txq = &qg_buf->txqs[0]; - if (pf_q == le16_to_cpu(txq->txq_id)) - vsi->tx_rings[i]->txq_teid = - le32_to_cpu(txq->q_teid); + q_idx++; + } } err_cfg_txqs: devm_kfree(&pf->pdev->dev, qg_buf); @@ -1667,6 +1688,18 @@ err_cfg_txqs: } /** + * 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, 0); +} + +/** * 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 @@ -1695,22 +1728,34 @@ static u32 ice_intrl_usec_to_reg(u8 intrl, u8 gran) static void ice_cfg_itr(struct ice_hw *hw, struct ice_q_vector *q_vector, u16 vector) { - u8 itr_gran = hw->itr_gran; - if (q_vector->num_ring_rx) { struct ice_ring_container *rc = &q_vector->rx; - rc->itr = ITR_TO_REG(ICE_DFLT_RX_ITR, itr_gran); + /* if this value is set then don't overwrite with default */ + if (!rc->itr_setting) + rc->itr_setting = ICE_DFLT_RX_ITR; + + rc->target_itr = ITR_TO_REG(rc->itr_setting); + rc->next_update = jiffies + 1; + rc->current_itr = rc->target_itr; rc->latency_range = ICE_LOW_LATENCY; - wr32(hw, GLINT_ITR(rc->itr_idx, vector), rc->itr); + wr32(hw, GLINT_ITR(rc->itr_idx, vector), + ITR_REG_ALIGN(rc->current_itr) >> ICE_ITR_GRAN_S); } if (q_vector->num_ring_tx) { struct ice_ring_container *rc = &q_vector->tx; - rc->itr = ITR_TO_REG(ICE_DFLT_TX_ITR, itr_gran); + /* if this value is set then don't overwrite with default */ + if (!rc->itr_setting) + rc->itr_setting = ICE_DFLT_TX_ITR; + + rc->target_itr = ITR_TO_REG(rc->itr_setting); + rc->next_update = jiffies + 1; + rc->current_itr = rc->target_itr; rc->latency_range = ICE_LOW_LATENCY; - wr32(hw, GLINT_ITR(rc->itr_idx, vector), rc->itr); + wr32(hw, GLINT_ITR(rc->itr_idx, vector), + ITR_REG_ALIGN(rc->current_itr) >> ICE_ITR_GRAN_S); } } @@ -1789,26 +1834,34 @@ int ice_vsi_manage_vlan_insertion(struct ice_vsi *vsi) { struct device *dev = &vsi->back->pdev->dev; struct ice_hw *hw = &vsi->back->hw; - struct ice_vsi_ctx ctxt = { 0 }; + struct ice_vsi_ctx *ctxt; enum ice_status status; + int ret = 0; + + ctxt = devm_kzalloc(dev, 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; + ctxt->info.vlan_flags = ICE_AQ_VSI_VLAN_MODE_ALL; - ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); + ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); - status = ice_update_vsi(hw, vsi->idx, &ctxt, NULL); + status = ice_update_vsi(hw, vsi->idx, ctxt, NULL); if (status) { dev_err(dev, "update VSI for VLAN insert failed, err %d aq_err %d\n", status, hw->adminq.sq_last_status); - return -EIO; + ret = -EIO; + goto out; } - vsi->info.vlan_flags = ctxt.info.vlan_flags; - return 0; + vsi->info.vlan_flags = ctxt->info.vlan_flags; +out: + devm_kfree(dev, ctxt); + return ret; } /** @@ -1820,35 +1873,42 @@ int ice_vsi_manage_vlan_stripping(struct ice_vsi *vsi, bool ena) { struct device *dev = &vsi->back->pdev->dev; struct ice_hw *hw = &vsi->back->hw; - struct ice_vsi_ctx ctxt = { 0 }; + struct ice_vsi_ctx *ctxt; enum ice_status status; + int ret = 0; + + ctxt = devm_kzalloc(dev, 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) { + 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 { + 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; - } + 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.vlan_flags |= ICE_AQ_VSI_VLAN_MODE_ALL; - ctxt.info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); + ctxt->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_VLAN_VALID); - status = ice_update_vsi(hw, vsi->idx, &ctxt, NULL); + status = ice_update_vsi(hw, vsi->idx, ctxt, NULL); if (status) { dev_err(dev, "update VSI for VLAN strip failed, ena = %d err %d aq_err %d\n", ena, status, hw->adminq.sq_last_status); - return -EIO; + ret = -EIO; + goto out; } - vsi->info.vlan_flags = ctxt.info.vlan_flags; - return 0; + vsi->info.vlan_flags = ctxt->info.vlan_flags; +out: + devm_kfree(dev, ctxt); + return ret; } /** @@ -1878,9 +1938,12 @@ int ice_vsi_stop_rx_rings(struct ice_vsi *vsi) * @vsi: the VSI being configured * @rst_src: reset source * @rel_vmvf_num: Relative id of VF/VM + * @rings: Tx ring array to be stopped + * @offset: offset within vsi->txq_map */ -int ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, - u16 rel_vmvf_num) +static int +ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, + u16 rel_vmvf_num, struct ice_ring **rings, int offset) { struct ice_pf *pf = vsi->back; struct ice_hw *hw = &pf->hw; @@ -1908,18 +1971,18 @@ int ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, ice_for_each_txq(vsi, i) { u16 v_idx; - if (!vsi->tx_rings || !vsi->tx_rings[i]) { + if (!rings || !rings[i] || !rings[i]->q_vector) { err = -EINVAL; goto err_out; } - q_ids[i] = vsi->txq_map[i]; - q_teids[i] = vsi->tx_rings[i]->txq_teid; + q_ids[i] = vsi->txq_map[i + offset]; + q_teids[i] = rings[i]->txq_teid; /* clear cause_ena bit for disabled queues */ - val = rd32(hw, QINT_TQCTL(vsi->tx_rings[i]->reg_idx)); + val = rd32(hw, QINT_TQCTL(rings[i]->reg_idx)); val &= ~QINT_TQCTL_CAUSE_ENA_M; - wr32(hw, QINT_TQCTL(vsi->tx_rings[i]->reg_idx), val); + wr32(hw, QINT_TQCTL(rings[i]->reg_idx), val); /* software is expected to wait for 100 ns */ ndelay(100); @@ -1927,7 +1990,7 @@ int ice_vsi_stop_tx_rings(struct ice_vsi *vsi, enum ice_disq_rst_src rst_src, /* trigger a software interrupt for the vector associated to * the queue to schedule NAPI handler */ - v_idx = vsi->tx_rings[i]->q_vector->v_idx; + v_idx = rings[i]->q_vector->v_idx; wr32(hw, GLINT_DYN_CTL(vsi->hw_base_vector + v_idx), GLINT_DYN_CTL_SWINT_TRIG_M | GLINT_DYN_CTL_INTENA_MSK_M); } @@ -1957,6 +2020,19 @@ err_alloc_q_ids: } /** + * 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, + 0); +} + +/** * 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 @@ -2056,6 +2132,9 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, /* 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); if (ret) @@ -2113,17 +2192,13 @@ ice_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi, pf->q_left_rx -= vsi->alloc_rxq; break; default: - /* if VSI type is not recognized, clean up the resources and - * exit - */ + /* clean up the resources and exit */ goto unroll_vsi_init; } - ice_vsi_set_tc_cfg(vsi); - /* configure VSI nodes based on number of queues and TC's */ for (i = 0; i < vsi->tc_cfg.numtc; i++) - max_txqs[i] = vsi->num_txq; + max_txqs[i] = pf->num_lan_tx; ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, max_txqs); @@ -2314,7 +2389,7 @@ static int ice_search_res(struct ice_res_tracker *res, u16 needed, u16 id) int start = res->search_hint; int end = start; - if ((start + needed) > res->num_entries) + if ((start + needed) > res->num_entries) return -ENOMEM; id |= ICE_RES_VALID_BIT; @@ -2443,13 +2518,15 @@ void ice_vsi_dis_irq(struct ice_vsi *vsi) */ int ice_vsi_release(struct ice_vsi *vsi) { + struct ice_vf *vf = NULL; struct ice_pf *pf; - struct ice_vf *vf; if (!vsi->back) return -ENODEV; pf = vsi->back; - vf = &pf->vf[vsi->vf_id]; + + if (vsi->type == ICE_VSI_VF) + vf = &pf->vf[vsi->vf_id]; /* do not unregister and free netdevs while driver is in the reset * recovery pending state. Since reset/rebuild happens through PF * service task workqueue, its not a good idea to unregister netdev @@ -2491,6 +2568,7 @@ int ice_vsi_release(struct ice_vsi *vsi) } ice_remove_vsi_fltr(&pf->hw, vsi->idx); + ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); ice_vsi_delete(vsi); ice_vsi_free_q_vectors(vsi); ice_vsi_clear_rings(vsi); @@ -2518,11 +2596,14 @@ int ice_vsi_release(struct ice_vsi *vsi) int ice_vsi_rebuild(struct ice_vsi *vsi) { u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; + struct ice_pf *pf; int ret, i; if (!vsi) return -EINVAL; + pf = vsi->back; + ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx); ice_vsi_free_q_vectors(vsi); ice_free_res(vsi->back->sw_irq_tracker, vsi->sw_base_vector, vsi->idx); ice_free_res(vsi->back->hw_irq_tracker, vsi->hw_base_vector, vsi->idx); @@ -2532,6 +2613,7 @@ int ice_vsi_rebuild(struct ice_vsi *vsi) ice_vsi_free_arrays(vsi, false); ice_dev_onetime_setup(&vsi->back->hw); ice_vsi_set_num_qs(vsi); + ice_vsi_set_tc_cfg(vsi); /* Initialize VSI struct elements and create VSI in FW */ ret = ice_vsi_init(vsi); @@ -2557,6 +2639,12 @@ int ice_vsi_rebuild(struct ice_vsi *vsi) goto err_vectors; ice_vsi_map_rings_to_vectors(vsi); + /* 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, vsi->back->flags)) + ice_vsi_cfg_rss_lut_key(vsi); break; case ICE_VSI_VF: ret = ice_vsi_alloc_q_vectors(vsi); @@ -2578,11 +2666,9 @@ int ice_vsi_rebuild(struct ice_vsi *vsi) break; } - ice_vsi_set_tc_cfg(vsi); - /* configure VSI nodes based on number of queues and TC's */ for (i = 0; i < vsi->tc_cfg.numtc; i++) - max_txqs[i] = vsi->num_txq; + max_txqs[i] = pf->num_lan_tx; ret = ice_cfg_vsi_lan(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc, max_txqs); |