diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice.h | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_adminq_cmd.h | 28 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 54 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.h | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_main.c | 20 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_sched.c | 886 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_sched.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_type.h | 7 |
8 files changed, 1006 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h index 66d0976afa46..8898255e5a65 100644 --- a/drivers/net/ethernet/intel/ice/ice.h +++ b/drivers/net/ethernet/intel/ice/ice.h @@ -42,6 +42,7 @@ extern const char ice_drv_ver[]; #define ICE_MIN_NUM_DESC 8 #define ICE_MAX_NUM_DESC 8160 #define ICE_REQ_DESC_MULTIPLE 32 +#define ICE_DFLT_TRAFFIC_CLASS BIT(0) #define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16) #define ICE_ETHTOOL_FWVER_LEN 32 #define ICE_AQ_LEN 64 @@ -261,6 +262,12 @@ static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, wr32(hw, GLINT_DYN_CTL(vector), val); } +static inline void ice_vsi_set_tc_cfg(struct ice_vsi *vsi) +{ + vsi->tc_cfg.ena_tc = ICE_DFLT_TRAFFIC_CLASS; + vsi->tc_cfg.numtc = 1; +} + void ice_set_ethtool_ops(struct net_device *netdev); int ice_up(struct ice_vsi *vsi); int ice_down(struct ice_vsi *vsi); diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h index ae7376f2135b..348b9cc3c596 100644 --- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h +++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h @@ -631,6 +631,25 @@ struct ice_aqc_get_topo { __le32 addr_low; }; +/* Update TSE (indirect 0x0403) + * Get TSE (indirect 0x0404) + */ +struct ice_aqc_get_cfg_elem { + __le16 num_elem_req; /* Used by commands */ + __le16 num_elem_resp; /* Used by responses */ + __le32 reserved; + __le32 addr_high; + __le32 addr_low; +}; + +/* This is the buffer for: + * Suspend Nodes (indirect 0x0409) + * Resume Nodes (indirect 0x040A) + */ +struct ice_aqc_suspend_resume_elem { + __le32 teid[1]; +}; + /* Add TSE (indirect 0x0401) * Delete TSE (indirect 0x040F) * Move TSE (indirect 0x0408) @@ -691,6 +710,11 @@ struct ice_aqc_txsched_topo_grp_info_hdr { __le16 reserved2; }; +struct ice_aqc_add_elem { + struct ice_aqc_txsched_topo_grp_info_hdr hdr; + struct ice_aqc_txsched_elem_data generic[1]; +}; + struct ice_aqc_get_topo_elem { struct ice_aqc_txsched_topo_grp_info_hdr hdr; struct ice_aqc_txsched_elem_data @@ -1181,6 +1205,7 @@ struct ice_aq_desc { struct ice_aqc_get_sw_cfg get_sw_conf; struct ice_aqc_sw_rules sw_rules; struct ice_aqc_get_topo get_topo; + struct ice_aqc_get_cfg_elem get_update_elem; struct ice_aqc_query_txsched_res query_sched_res; struct ice_aqc_add_move_delete_elem add_move_delete_elem; struct ice_aqc_nvm nvm; @@ -1258,6 +1283,9 @@ enum ice_adminq_opc { /* transmit scheduler commands */ ice_aqc_opc_get_dflt_topo = 0x0400, + ice_aqc_opc_add_sched_elems = 0x0401, + ice_aqc_opc_suspend_sched_elems = 0x0409, + ice_aqc_opc_resume_sched_elems = 0x040A, ice_aqc_opc_delete_sched_elems = 0x040F, ice_aqc_opc_query_sched_res = 0x0412, diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 02d589275db0..0ab9bf66c84e 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -2089,3 +2089,57 @@ ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids, mutex_unlock(&pi->sched_lock); return status; } + +/** + * ice_cfg_vsi_qs - configure the new/exisiting VSI queues + * @pi: port information structure + * @vsi_id: VSI Id + * @tc_bitmap: TC bitmap + * @maxqs: max queues array per TC + * @owner: lan or rdma + * + * This function adds/updates the VSI queues per TC. + */ +static enum ice_status +ice_cfg_vsi_qs(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap, + u16 *maxqs, u8 owner) +{ + enum ice_status status = 0; + u8 i; + + if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY) + return ICE_ERR_CFG; + + mutex_lock(&pi->sched_lock); + + for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { + /* configuration is possible only if TC node is present */ + if (!ice_sched_get_tc_node(pi, i)) + continue; + + status = ice_sched_cfg_vsi(pi, vsi_id, i, maxqs[i], owner, + ice_is_tc_ena(tc_bitmap, i)); + if (status) + break; + } + + mutex_unlock(&pi->sched_lock); + return status; +} + +/** + * ice_cfg_vsi_lan - configure VSI lan queues + * @pi: port information structure + * @vsi_id: VSI Id + * @tc_bitmap: TC bitmap + * @max_lanqs: max lan queues array per TC + * + * This function adds/updates the VSI lan queues per TC. + */ +enum ice_status +ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap, + u16 *max_lanqs) +{ + return ice_cfg_vsi_qs(pi, vsi_id, tc_bitmap, max_lanqs, + ICE_SCHED_NODE_OWNER_LAN); +} diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h index c4213fbf9579..971277ebcc86 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.h +++ b/drivers/net/ethernet/intel/ice/ice_common.h @@ -69,6 +69,9 @@ enum ice_status ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids, u32 *q_teids, struct ice_sq_cd *cmd_details); enum ice_status +ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap, + u16 *max_lanqs); +enum ice_status ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps, struct ice_aqc_add_tx_qgrp *buf, u16 buf_size, struct ice_sq_cd *cd); diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 9c1841700314..0f8637b97a34 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2085,10 +2085,11 @@ static struct ice_vsi * ice_vsi_setup(struct ice_pf *pf, enum ice_vsi_type type, struct ice_port_info *pi) { + u16 max_txqs[ICE_MAX_TRAFFIC_CLASS] = { 0 }; struct device *dev = &pf->pdev->dev; struct ice_vsi_ctx ctxt = { 0 }; struct ice_vsi *vsi; - int ret; + int ret, i; vsi = ice_vsi_alloc(pf, type); if (!vsi) { @@ -2156,6 +2157,20 @@ ice_vsi_setup(struct ice_pf *pf, enum ice_vsi_type type, */ goto err_rings; } + + 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; + + ret = ice_cfg_vsi_lan(vsi->port_info, vsi->vsi_num, + vsi->tc_cfg.ena_tc, max_txqs); + if (ret) { + dev_info(&pf->pdev->dev, "Failed VSI lan queue config\n"); + goto err_rings; + } + return vsi; err_rings: @@ -2398,8 +2413,7 @@ static void ice_determine_q_usage(struct ice_pf *pf) q_left_tx = pf->hw.func_caps.common_cap.num_txq; q_left_rx = pf->hw.func_caps.common_cap.num_rxq; - /* initial support for only 1 tx queue */ - pf->num_lan_tx = 1; + pf->num_lan_tx = min_t(int, q_left_tx, num_online_cpus()); /* only 1 rx queue unless RSS is enabled */ if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index e50eebbf78e3..f16ff3e4a840 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -360,6 +360,110 @@ ice_aq_get_dflt_topo(struct ice_hw *hw, u8 lport, } /** + * ice_aq_add_sched_elems - adds scheduling element + * @hw: pointer to the hw struct + * @grps_req: the number of groups that are requested to be added + * @buf: pointer to buffer + * @buf_size: buffer size in bytes + * @grps_added: returns total number of groups added + * @cd: pointer to command details structure or NULL + * + * Add scheduling elements (0x0401) + */ +static enum ice_status +ice_aq_add_sched_elems(struct ice_hw *hw, u16 grps_req, + struct ice_aqc_add_elem *buf, u16 buf_size, + u16 *grps_added, struct ice_sq_cd *cd) +{ + struct ice_aqc_add_move_delete_elem *cmd; + struct ice_aq_desc desc; + enum ice_status status; + + cmd = &desc.params.add_move_delete_elem; + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_sched_elems); + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + + cmd->num_grps_req = cpu_to_le16(grps_req); + status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); + if (!status && grps_added) + *grps_added = le16_to_cpu(cmd->num_grps_updated); + + return status; +} + +/** + * ice_suspend_resume_elems - suspend/resume scheduler elements + * @hw: pointer to the hw struct + * @elems_req: number of elements to suspend + * @buf: pointer to buffer + * @buf_size: buffer size in bytes + * @elems_ret: returns total number of elements suspended + * @cd: pointer to command details structure or NULL + * @cmd_code: command code for suspend or resume + * + * suspend/resume scheduler elements + */ +static enum ice_status +ice_suspend_resume_elems(struct ice_hw *hw, u16 elems_req, + struct ice_aqc_suspend_resume_elem *buf, u16 buf_size, + u16 *elems_ret, struct ice_sq_cd *cd, + enum ice_adminq_opc cmd_code) +{ + struct ice_aqc_get_cfg_elem *cmd; + struct ice_aq_desc desc; + enum ice_status status; + + cmd = &desc.params.get_update_elem; + ice_fill_dflt_direct_cmd_desc(&desc, cmd_code); + cmd->num_elem_req = cpu_to_le16(elems_req); + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd); + if (!status && elems_ret) + *elems_ret = le16_to_cpu(cmd->num_elem_resp); + return status; +} + +/** + * ice_aq_suspend_sched_elems - suspend scheduler elements + * @hw: pointer to the hw struct + * @elems_req: number of elements to suspend + * @buf: pointer to buffer + * @buf_size: buffer size in bytes + * @elems_ret: returns total number of elements suspended + * @cd: pointer to command details structure or NULL + * + * Suspend scheduling elements (0x0409) + */ +static enum ice_status +ice_aq_suspend_sched_elems(struct ice_hw *hw, u16 elems_req, + struct ice_aqc_suspend_resume_elem *buf, + u16 buf_size, u16 *elems_ret, struct ice_sq_cd *cd) +{ + return ice_suspend_resume_elems(hw, elems_req, buf, buf_size, elems_ret, + cd, ice_aqc_opc_suspend_sched_elems); +} + +/** + * ice_aq_resume_sched_elems - resume scheduler elements + * @hw: pointer to the hw struct + * @elems_req: number of elements to resume + * @buf: pointer to buffer + * @buf_size: buffer size in bytes + * @elems_ret: returns total number of elements resumed + * @cd: pointer to command details structure or NULL + * + * resume scheduling elements (0x040A) + */ +static enum ice_status +ice_aq_resume_sched_elems(struct ice_hw *hw, u16 elems_req, + struct ice_aqc_suspend_resume_elem *buf, + u16 buf_size, u16 *elems_ret, struct ice_sq_cd *cd) +{ + return ice_suspend_resume_elems(hw, elems_req, buf, buf_size, elems_ret, + cd, ice_aqc_opc_resume_sched_elems); +} + +/** * ice_aq_query_sched_res - query scheduler resource * @hw: pointer to the hw struct * @buf_size: buffer size in bytes @@ -380,6 +484,46 @@ ice_aq_query_sched_res(struct ice_hw *hw, u16 buf_size, } /** + * ice_sched_suspend_resume_elems - suspend or resume hw nodes + * @hw: pointer to the hw struct + * @num_nodes: number of nodes + * @node_teids: array of node teids to be suspended or resumed + * @suspend: true means suspend / false means resume + * + * This function suspends or resumes hw nodes + */ +static enum ice_status +ice_sched_suspend_resume_elems(struct ice_hw *hw, u8 num_nodes, u32 *node_teids, + bool suspend) +{ + struct ice_aqc_suspend_resume_elem *buf; + u16 i, buf_size, num_elem_ret = 0; + enum ice_status status; + + buf_size = sizeof(*buf) * num_nodes; + buf = devm_kzalloc(ice_hw_to_dev(hw), buf_size, GFP_KERNEL); + if (!buf) + return ICE_ERR_NO_MEMORY; + + for (i = 0; i < num_nodes; i++) + buf->teid[i] = cpu_to_le32(node_teids[i]); + + if (suspend) + status = ice_aq_suspend_sched_elems(hw, num_nodes, buf, + buf_size, &num_elem_ret, + NULL); + else + status = ice_aq_resume_sched_elems(hw, num_nodes, buf, + buf_size, &num_elem_ret, + NULL); + if (status || num_elem_ret != num_nodes) + ice_debug(hw, ICE_DBG_SCHED, "suspend/resume failed\n"); + + devm_kfree(ice_hw_to_dev(hw), buf); + return status; +} + +/** * ice_sched_clear_tx_topo - clears the schduler tree nodes * @pi: port information structure * @@ -463,6 +607,215 @@ void ice_sched_cleanup_all(struct ice_hw *hw) } /** + * ice_sched_create_vsi_info_entry - create an empty new VSI entry + * @pi: port information structure + * @vsi_id: VSI Id + * + * This function creates a new VSI entry and adds it to list + */ +static struct ice_sched_vsi_info * +ice_sched_create_vsi_info_entry(struct ice_port_info *pi, u16 vsi_id) +{ + struct ice_sched_vsi_info *vsi_elem; + + if (!pi) + return NULL; + + vsi_elem = devm_kzalloc(ice_hw_to_dev(pi->hw), sizeof(*vsi_elem), + GFP_KERNEL); + if (!vsi_elem) + return NULL; + + list_add(&vsi_elem->list_entry, &pi->vsi_info_list); + vsi_elem->vsi_id = vsi_id; + return vsi_elem; +} + +/** + * ice_sched_add_elems - add nodes to hw and SW DB + * @pi: port information structure + * @tc_node: pointer to the branch node + * @parent: pointer to the parent node + * @layer: layer number to add nodes + * @num_nodes: number of nodes + * @num_nodes_added: pointer to num nodes added + * @first_node_teid: if new nodes are added then return the teid of first node + * + * This function add nodes to hw as well as to SW DB for a given layer + */ +static enum ice_status +ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node, + struct ice_sched_node *parent, u8 layer, u16 num_nodes, + u16 *num_nodes_added, u32 *first_node_teid) +{ + struct ice_sched_node *prev, *new_node; + struct ice_aqc_add_elem *buf; + u16 i, num_groups_added = 0; + enum ice_status status = 0; + struct ice_hw *hw = pi->hw; + u16 buf_size; + u32 teid; + + buf_size = sizeof(*buf) + sizeof(*buf->generic) * (num_nodes - 1); + buf = devm_kzalloc(ice_hw_to_dev(hw), buf_size, GFP_KERNEL); + if (!buf) + return ICE_ERR_NO_MEMORY; + + buf->hdr.parent_teid = parent->info.node_teid; + buf->hdr.num_elems = cpu_to_le16(num_nodes); + for (i = 0; i < num_nodes; i++) { + buf->generic[i].parent_teid = parent->info.node_teid; + buf->generic[i].data.elem_type = ICE_AQC_ELEM_TYPE_SE_GENERIC; + buf->generic[i].data.valid_sections = + ICE_AQC_ELEM_VALID_GENERIC | ICE_AQC_ELEM_VALID_CIR | + ICE_AQC_ELEM_VALID_EIR; + buf->generic[i].data.generic = 0; + buf->generic[i].data.cir_bw.bw_profile_idx = + ICE_SCHED_DFLT_RL_PROF_ID; + buf->generic[i].data.eir_bw.bw_profile_idx = + ICE_SCHED_DFLT_RL_PROF_ID; + } + + status = ice_aq_add_sched_elems(hw, 1, buf, buf_size, + &num_groups_added, NULL); + if (status || num_groups_added != 1) { + ice_debug(hw, ICE_DBG_SCHED, "add elements failed\n"); + devm_kfree(ice_hw_to_dev(hw), buf); + return ICE_ERR_CFG; + } + + *num_nodes_added = num_nodes; + /* add nodes to the SW DB */ + for (i = 0; i < num_nodes; i++) { + status = ice_sched_add_node(pi, layer, &buf->generic[i]); + if (status) { + ice_debug(hw, ICE_DBG_SCHED, + "add nodes in SW DB failed status =%d\n", + status); + break; + } + + teid = le32_to_cpu(buf->generic[i].node_teid); + new_node = ice_sched_find_node_by_teid(parent, teid); + + if (!new_node) { + ice_debug(hw, ICE_DBG_SCHED, + "Node is missing for teid =%d\n", teid); + break; + } + + new_node->sibling = NULL; + new_node->tc_num = tc_node->tc_num; + + /* add it to previous node sibling pointer */ + /* Note: siblings are not linked across branches */ + prev = ice_sched_get_first_node(hw, tc_node, layer); + + if (prev && prev != new_node) { + while (prev->sibling) + prev = prev->sibling; + prev->sibling = new_node; + } + + if (i == 0) + *first_node_teid = teid; + } + + devm_kfree(ice_hw_to_dev(hw), buf); + return status; +} + +/** + * ice_sched_add_nodes_to_layer - Add nodes to a given layer + * @pi: port information structure + * @tc_node: pointer to TC node + * @parent: pointer to parent node + * @layer: layer number to add nodes + * @num_nodes: number of nodes to be added + * @first_node_teid: pointer to the first node teid + * @num_nodes_added: pointer to number of nodes added + * + * This function add nodes to a given layer. + */ +static enum ice_status +ice_sched_add_nodes_to_layer(struct ice_port_info *pi, + struct ice_sched_node *tc_node, + struct ice_sched_node *parent, u8 layer, + u16 num_nodes, u32 *first_node_teid, + u16 *num_nodes_added) +{ + u32 *first_teid_ptr = first_node_teid; + u16 new_num_nodes, max_child_nodes; + enum ice_status status = 0; + struct ice_hw *hw = pi->hw; + u16 num_added = 0; + u32 temp; + + if (!num_nodes) + return status; + + if (!parent || layer < hw->sw_entry_point_layer) + return ICE_ERR_PARAM; + + *num_nodes_added = 0; + + /* max children per node per layer */ + max_child_nodes = + le16_to_cpu(hw->layer_info[parent->tx_sched_layer].max_children); + + /* current number of children + required nodes exceed max children ? */ + if ((parent->num_children + num_nodes) > max_child_nodes) { + /* Fail if the parent is a TC node */ + if (parent == tc_node) + return ICE_ERR_CFG; + + /* utilize all the spaces if the parent is not full */ + if (parent->num_children < max_child_nodes) { + new_num_nodes = max_child_nodes - parent->num_children; + /* this recursion is intentional, and wouldn't + * go more than 2 calls + */ + status = ice_sched_add_nodes_to_layer(pi, tc_node, + parent, layer, + new_num_nodes, + first_node_teid, + &num_added); + if (status) + return status; + + *num_nodes_added += num_added; + } + /* Don't modify the first node teid memory if the first node was + * added already in the above call. Instead send some temp + * memory for all other recursive calls. + */ + if (num_added) + first_teid_ptr = &temp; + + new_num_nodes = num_nodes - num_added; + + /* This parent is full, try the next sibling */ + parent = parent->sibling; + + /* this recursion is intentional, for 1024 queues + * per VSI, it goes max of 16 iterations. + * 1024 / 8 = 128 layer 8 nodes + * 128 /8 = 16 (add 8 nodes per iteration) + */ + status = ice_sched_add_nodes_to_layer(pi, tc_node, parent, + layer, new_num_nodes, + first_teid_ptr, + &num_added); + *num_nodes_added += num_added; + return status; + } + + status = ice_sched_add_elems(pi, tc_node, parent, layer, num_nodes, + num_nodes_added, first_node_teid); + return status; +} + +/** * ice_sched_get_qgrp_layer - get the current queue group layer number * @hw: pointer to the hw struct * @@ -475,6 +828,101 @@ static u8 ice_sched_get_qgrp_layer(struct ice_hw *hw) } /** + * ice_sched_get_vsi_layer - get the current VSI layer number + * @hw: pointer to the hw struct + * + * This function returns the current VSI layer number + */ +static u8 ice_sched_get_vsi_layer(struct ice_hw *hw) +{ + /* Num Layers VSI layer + * 9 6 + * 7 4 + * 5 or less sw_entry_point_layer + */ + /* calculate the vsi layer based on number of layers. */ + if (hw->num_tx_sched_layers > ICE_VSI_LAYER_OFFSET + 1) { + u8 layer = hw->num_tx_sched_layers - ICE_VSI_LAYER_OFFSET; + + if (layer > hw->sw_entry_point_layer) + return layer; + } + return hw->sw_entry_point_layer; +} + +/** + * ice_sched_get_num_nodes_per_layer - Get the total number of nodes per layer + * @pi: pointer to the port info struct + * @layer: layer number + * + * This function calculates the number of nodes present in the scheduler tree + * including all the branches for a given layer + */ +static u16 +ice_sched_get_num_nodes_per_layer(struct ice_port_info *pi, u8 layer) +{ + struct ice_hw *hw; + u16 num_nodes = 0; + u8 i; + + if (!pi) + return num_nodes; + + hw = pi->hw; + + /* Calculate the number of nodes for all TCs */ + for (i = 0; i < pi->root->num_children; i++) { + struct ice_sched_node *tc_node, *node; + + tc_node = pi->root->children[i]; + + /* Get the first node */ + node = ice_sched_get_first_node(hw, tc_node, layer); + if (!node) + continue; + + /* count the siblings */ + while (node) { + num_nodes++; + node = node->sibling; + } + } + + return num_nodes; +} + +/** + * ice_sched_val_max_nodes - check max number of nodes reached or not + * @pi: port information structure + * @new_num_nodes_per_layer: pointer to the new number of nodes array + * + * This function checks whether the scheduler tree layers have enough space to + * add new nodes + */ +static enum ice_status +ice_sched_validate_for_max_nodes(struct ice_port_info *pi, + u16 *new_num_nodes_per_layer) +{ + struct ice_hw *hw = pi->hw; + u8 i, qg_layer; + u16 num_nodes; + + qg_layer = ice_sched_get_qgrp_layer(hw); + + /* walk through all the layers from SW entry point to qgroup layer */ + for (i = hw->sw_entry_point_layer; i <= qg_layer; i++) { + num_nodes = ice_sched_get_num_nodes_per_layer(pi, i); + if (num_nodes + new_num_nodes_per_layer[i] > + le16_to_cpu(hw->layer_info[i].max_pf_nodes)) { + ice_debug(hw, ICE_DBG_SCHED, + "max nodes reached for layer = %d\n", i); + return ICE_ERR_CFG; + } + } + return 0; +} + +/** * ice_rm_dflt_leaf_node - remove the default leaf node in the tree * @pi: port information structure * @@ -516,6 +964,7 @@ ice_sched_rm_dflt_nodes(struct ice_port_info *pi) struct ice_sched_node *node; ice_rm_dflt_leaf_node(pi); + /* remove the default nodes except TC and root nodes */ node = pi->root; while (node) { @@ -525,6 +974,7 @@ ice_sched_rm_dflt_nodes(struct ice_port_info *pi) ice_free_sched_node(pi, node); break; } + if (!node->num_children) break; node = node->children[0]; @@ -720,8 +1170,10 @@ ice_sched_find_node_in_subtree(struct ice_hw *hw, struct ice_sched_node *base, if (node == child) return true; + if (child->tx_sched_layer > node->tx_sched_layer) return false; + /* this recursion is intentional, and wouldn't * go more than 8 calls */ @@ -751,13 +1203,17 @@ ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc, qgrp_layer = ice_sched_get_qgrp_layer(pi->hw); max_children = le16_to_cpu(pi->hw->layer_info[qgrp_layer].max_children); + list_elem = ice_sched_get_vsi_info_entry(pi, vsi_id); if (!list_elem) goto lan_q_exit; + vsi_node = list_elem->vsi_node[tc]; + /* validate invalid VSI id */ if (!vsi_node) goto lan_q_exit; + /* get the first q group node from VSI sub-tree */ qgrp_node = ice_sched_get_first_node(pi->hw, vsi_node, qgrp_layer); while (qgrp_node) { @@ -768,6 +1224,436 @@ ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc, break; qgrp_node = qgrp_node->sibling; } + lan_q_exit: return qgrp_node; } + +/** + * ice_sched_get_vsi_node - Get a VSI node based on VSI id + * @hw: pointer to the hw struct + * @tc_node: pointer to the TC node + * @vsi_id: VSI id + * + * This function retrieves a VSI node for a given VSI id from a given + * TC branch + */ +static struct ice_sched_node * +ice_sched_get_vsi_node(struct ice_hw *hw, struct ice_sched_node *tc_node, + u16 vsi_id) +{ + struct ice_sched_node *node; + u8 vsi_layer; + + vsi_layer = ice_sched_get_vsi_layer(hw); + node = ice_sched_get_first_node(hw, tc_node, vsi_layer); + + /* Check whether it already exists */ + while (node) { + if (node->vsi_id == vsi_id) + return node; + node = node->sibling; + } + + return node; +} + +/** + * ice_sched_calc_vsi_child_nodes - calculate number of VSI child nodes + * @hw: pointer to the hw struct + * @num_qs: number of queues + * @num_nodes: num nodes array + * + * This function calculates the number of VSI child nodes based on the + * number of queues. + */ +static void +ice_sched_calc_vsi_child_nodes(struct ice_hw *hw, u16 num_qs, u16 *num_nodes) +{ + u16 num = num_qs; + u8 i, qgl, vsil; + + qgl = ice_sched_get_qgrp_layer(hw); + vsil = ice_sched_get_vsi_layer(hw); + + /* calculate num nodes from q group to VSI layer */ + for (i = qgl; i > vsil; i--) { + u16 max_children = le16_to_cpu(hw->layer_info[i].max_children); + + /* round to the next integer if there is a remainder */ + num = DIV_ROUND_UP(num, max_children); + + /* need at least one node */ + num_nodes[i] = num ? num : 1; + } +} + +/** + * ice_sched_add_vsi_child_nodes - add VSI child nodes to tree + * @pi: port information structure + * @vsi_id: VSI id + * @tc_node: pointer to the TC node + * @num_nodes: pointer to the num nodes that needs to be added per layer + * @owner: node owner (lan or rdma) + * + * This function adds the VSI child nodes to tree. It gets called for + * lan and rdma separately. + */ +static enum ice_status +ice_sched_add_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_id, + struct ice_sched_node *tc_node, u16 *num_nodes, + u8 owner) +{ + struct ice_sched_node *parent, *node; + struct ice_hw *hw = pi->hw; + enum ice_status status; + u32 first_node_teid; + u16 num_added = 0; + u8 i, qgl, vsil; + + status = ice_sched_validate_for_max_nodes(pi, num_nodes); + if (status) + return status; + + qgl = ice_sched_get_qgrp_layer(hw); + vsil = ice_sched_get_vsi_layer(hw); + parent = ice_sched_get_vsi_node(hw, tc_node, vsi_id); + for (i = vsil + 1; i <= qgl; i++) { + if (!parent) + return ICE_ERR_CFG; + status = ice_sched_add_nodes_to_layer(pi, tc_node, parent, i, + num_nodes[i], + &first_node_teid, + &num_added); + if (status || num_nodes[i] != num_added) + return ICE_ERR_CFG; + + /* The newly added node can be a new parent for the next + * layer nodes + */ + if (num_added) { + parent = ice_sched_find_node_by_teid(tc_node, + first_node_teid); + node = parent; + while (node) { + node->owner = owner; + node = node->sibling; + } + } else { + parent = parent->children[0]; + } + } + + return 0; +} + +/** + * ice_sched_rm_vsi_child_nodes - remove VSI child nodes from the tree + * @pi: port information structure + * @vsi_node: pointer to the VSI node + * @num_nodes: pointer to the num nodes that needs to be removed per layer + * @owner: node owner (lan or rdma) + * + * This function removes the VSI child nodes from the tree. It gets called for + * lan and rdma separately. + */ +static void +ice_sched_rm_vsi_child_nodes(struct ice_port_info *pi, + struct ice_sched_node *vsi_node, u16 *num_nodes, + u8 owner) +{ + struct ice_sched_node *node, *next; + u8 i, qgl, vsil; + u16 num; + + qgl = ice_sched_get_qgrp_layer(pi->hw); + vsil = ice_sched_get_vsi_layer(pi->hw); + + for (i = qgl; i > vsil; i--) { + num = num_nodes[i]; + node = ice_sched_get_first_node(pi->hw, vsi_node, i); + while (node && num) { + next = node->sibling; + if (node->owner == owner && !node->num_children) { + ice_free_sched_node(pi, node); + num--; + } + node = next; + } + } +} + +/** + * ice_sched_calc_vsi_support_nodes - calculate number of VSI support nodes + * @hw: pointer to the hw struct + * @tc_node: pointer to TC node + * @num_nodes: pointer to num nodes array + * + * This function calculates the number of supported nodes needed to add this + * VSI into tx tree including the VSI, parent and intermediate nodes in below + * layers + */ +static void +ice_sched_calc_vsi_support_nodes(struct ice_hw *hw, + struct ice_sched_node *tc_node, u16 *num_nodes) +{ + struct ice_sched_node *node; + u16 max_child; + u8 i, vsil; + + vsil = ice_sched_get_vsi_layer(hw); + for (i = vsil; i >= hw->sw_entry_point_layer; i--) + /* Add intermediate nodes if TC has no children and + * need at least one node for VSI + */ + if (!tc_node->num_children || i == vsil) { + num_nodes[i]++; + } else { + /* If intermediate nodes are reached max children + * then add a new one. + */ + node = ice_sched_get_first_node(hw, tc_node, i); + max_child = le16_to_cpu(hw->layer_info[i].max_children); + + /* scan all the siblings */ + while (node) { + if (node->num_children < max_child) + break; + node = node->sibling; + } + + /* all the nodes are full, allocate a new one */ + if (!node) + num_nodes[i]++; + } +} + +/** + * ice_sched_add_vsi_support_nodes - add VSI supported nodes into tx tree + * @pi: port information structure + * @vsi_id: VSI Id + * @tc_node: pointer to TC node + * @num_nodes: pointer to num nodes array + * + * This function adds the VSI supported nodes into tx tree including the + * VSI, its parent and intermediate nodes in below layers + */ +static enum ice_status +ice_sched_add_vsi_support_nodes(struct ice_port_info *pi, u16 vsi_id, + struct ice_sched_node *tc_node, u16 *num_nodes) +{ + struct ice_sched_node *parent = tc_node; + enum ice_status status; + u32 first_node_teid; + u16 num_added = 0; + u8 i, vsil; + + if (!pi) + return ICE_ERR_PARAM; + + status = ice_sched_validate_for_max_nodes(pi, num_nodes); + if (status) + return status; + + vsil = ice_sched_get_vsi_layer(pi->hw); + for (i = pi->hw->sw_entry_point_layer; i <= vsil; i++) { + status = ice_sched_add_nodes_to_layer(pi, tc_node, parent, + i, num_nodes[i], + &first_node_teid, + &num_added); + if (status || num_nodes[i] != num_added) + return ICE_ERR_CFG; + + /* The newly added node can be a new parent for the next + * layer nodes + */ + if (num_added) + parent = ice_sched_find_node_by_teid(tc_node, + first_node_teid); + else + parent = parent->children[0]; + + if (!parent) + return ICE_ERR_CFG; + + if (i == vsil) + parent->vsi_id = vsi_id; + } + return 0; +} + +/** + * ice_sched_add_vsi_to_topo - add a new VSI into tree + * @pi: port information structure + * @vsi_id: VSI Id + * @tc: TC number + * + * This function adds a new VSI into scheduler tree + */ +static enum ice_status +ice_sched_add_vsi_to_topo(struct ice_port_info *pi, u16 vsi_id, u8 tc) +{ + u16 num_nodes[ICE_AQC_TOPO_MAX_LEVEL_NUM] = { 0 }; + struct ice_sched_node *tc_node; + struct ice_hw *hw = pi->hw; + + tc_node = ice_sched_get_tc_node(pi, tc); + if (!tc_node) + return ICE_ERR_PARAM; + + /* calculate number of supported nodes needed for this VSI */ + ice_sched_calc_vsi_support_nodes(hw, tc_node, num_nodes); + + /* add vsi supported nodes to tc subtree */ + return ice_sched_add_vsi_support_nodes(pi, vsi_id, tc_node, num_nodes); +} + +/** + * ice_sched_update_vsi_child_nodes - update VSI child nodes + * @pi: port information structure + * @vsi_id: VSI Id + * @tc: TC number + * @new_numqs: new number of max queues + * @owner: owner of this subtree + * + * This function updates the VSI child nodes based on the number of queues + */ +static enum ice_status +ice_sched_update_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_id, u8 tc, + u16 new_numqs, u8 owner) +{ + u16 prev_num_nodes[ICE_AQC_TOPO_MAX_LEVEL_NUM] = { 0 }; + u16 new_num_nodes[ICE_AQC_TOPO_MAX_LEVEL_NUM] = { 0 }; + struct ice_sched_node *vsi_node; + struct ice_sched_node *tc_node; + struct ice_sched_vsi_info *vsi; + enum ice_status status = 0; + struct ice_hw *hw = pi->hw; + u16 prev_numqs; + u8 i; + + tc_node = ice_sched_get_tc_node(pi, tc); + if (!tc_node) + return ICE_ERR_CFG; + + vsi_node = ice_sched_get_vsi_node(hw, tc_node, vsi_id); + if (!vsi_node) + return ICE_ERR_CFG; + + vsi = ice_sched_get_vsi_info_entry(pi, vsi_id); + if (!vsi) + return ICE_ERR_CFG; + + if (owner == ICE_SCHED_NODE_OWNER_LAN) + prev_numqs = vsi->max_lanq[tc]; + else + return ICE_ERR_PARAM; + + /* num queues are not changed */ + if (prev_numqs == new_numqs) + return status; + + /* calculate number of nodes based on prev/new number of qs */ + if (prev_numqs) + ice_sched_calc_vsi_child_nodes(hw, prev_numqs, prev_num_nodes); + + if (new_numqs) + ice_sched_calc_vsi_child_nodes(hw, new_numqs, new_num_nodes); + + if (prev_numqs > new_numqs) { + for (i = 0; i < ICE_AQC_TOPO_MAX_LEVEL_NUM; i++) + new_num_nodes[i] = prev_num_nodes[i] - new_num_nodes[i]; + + ice_sched_rm_vsi_child_nodes(pi, vsi_node, new_num_nodes, + owner); + } else { + for (i = 0; i < ICE_AQC_TOPO_MAX_LEVEL_NUM; i++) + new_num_nodes[i] -= prev_num_nodes[i]; + + status = ice_sched_add_vsi_child_nodes(pi, vsi_id, tc_node, + new_num_nodes, owner); + if (status) + return status; + } + + if (owner == ICE_SCHED_NODE_OWNER_LAN) + vsi->max_lanq[tc] = new_numqs; + + return status; +} + +/** + * ice_sched_cfg_vsi - configure the new/exisiting VSI + * @pi: port information structure + * @vsi_id: VSI Id + * @tc: TC number + * @maxqs: max number of queues + * @owner: lan or rdma + * @enable: TC enabled or disabled + * + * This function adds/updates VSI nodes based on the number of queues. If TC is + * enabled and VSI is in suspended state then resume the VSI back. If TC is + * disabled then suspend the VSI if it is not already. + */ +enum ice_status +ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_id, u8 tc, u16 maxqs, + u8 owner, bool enable) +{ + struct ice_sched_node *vsi_node, *tc_node; + struct ice_sched_vsi_info *vsi; + enum ice_status status = 0; + struct ice_hw *hw = pi->hw; + + tc_node = ice_sched_get_tc_node(pi, tc); + if (!tc_node) + return ICE_ERR_PARAM; + + vsi = ice_sched_get_vsi_info_entry(pi, vsi_id); + if (!vsi) + vsi = ice_sched_create_vsi_info_entry(pi, vsi_id); + if (!vsi) + return ICE_ERR_NO_MEMORY; + + vsi_node = ice_sched_get_vsi_node(hw, tc_node, vsi_id); + + /* suspend the VSI if tc is not enabled */ + if (!enable) { + if (vsi_node && vsi_node->in_use) { + u32 teid = le32_to_cpu(vsi_node->info.node_teid); + + status = ice_sched_suspend_resume_elems(hw, 1, &teid, + true); + if (!status) + vsi_node->in_use = false; + } + return status; + } + + /* TC is enabled, if it is a new VSI then add it to the tree */ + if (!vsi_node) { + status = ice_sched_add_vsi_to_topo(pi, vsi_id, tc); + if (status) + return status; + vsi_node = ice_sched_get_vsi_node(hw, tc_node, vsi_id); + if (!vsi_node) + return ICE_ERR_CFG; + vsi->vsi_node[tc] = vsi_node; + vsi_node->in_use = true; + } + + /* update the VSI child nodes */ + status = ice_sched_update_vsi_child_nodes(pi, vsi_id, tc, maxqs, owner); + if (status) + return status; + + /* TC is enabled, resume the VSI if it is in the suspend state */ + if (!vsi_node->in_use) { + u32 teid = le32_to_cpu(vsi_node->info.node_teid); + + status = ice_sched_suspend_resume_elems(hw, 1, &teid, false); + if (!status) + vsi_node->in_use = true; + } + + return status; +} diff --git a/drivers/net/ethernet/intel/ice/ice_sched.h b/drivers/net/ethernet/intel/ice/ice_sched.h index 639859a3d0f0..badadcc120d3 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.h +++ b/drivers/net/ethernet/intel/ice/ice_sched.h @@ -7,6 +7,7 @@ #include "ice_common.h" #define ICE_QGRP_LAYER_OFFSET 2 +#define ICE_VSI_LAYER_OFFSET 4 struct ice_sched_agg_vsi_info { struct list_head list_entry; @@ -36,4 +37,7 @@ struct ice_sched_node *ice_sched_get_tc_node(struct ice_port_info *pi, u8 tc); struct ice_sched_node * ice_sched_get_free_qparent(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 owner); +enum ice_status +ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_id, u8 tc, u16 maxqs, + u8 owner, bool enable); #endif /* _ICE_SCHED_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h index c7e0de3b8662..137a59a74b71 100644 --- a/drivers/net/ethernet/intel/ice/ice_type.h +++ b/drivers/net/ethernet/intel/ice/ice_type.h @@ -10,6 +10,11 @@ #include "ice_controlq.h" #include "ice_lan_tx_rx.h" +static inline bool ice_is_tc_ena(u8 bitmap, u8 tc) +{ + return test_bit(tc, (unsigned long *)&bitmap); +} + /* debug masks - set these bits in hw->debug_mask to control output */ #define ICE_DBG_INIT BIT_ULL(1) #define ICE_DBG_QCTX BIT_ULL(6) @@ -194,6 +199,8 @@ enum ice_agg_type { ICE_AGG_TYPE_QG }; +#define ICE_SCHED_DFLT_RL_PROF_ID 0 + /* vsi type list entry to locate corresponding vsi/ag nodes */ struct ice_sched_vsi_info { struct ice_sched_node *vsi_node[ICE_MAX_TRAFFIC_CLASS]; |