From 1e0f9881ef79af9629bbf3cc3b307498d2e015ac Mon Sep 17 00:00:00 2001 From: Dave Ertman Date: Tue, 20 Jun 2023 15:18:50 -0700 Subject: [PATCH] ice: Flesh out implementation of support for SRIOV on bonded interface Add in the functions that will allow a VF created on the primary interface of a bond to "fail-over" to another PF interface in the bond and continue to Tx and Rx. Add in an ordered take-down path for the bonded interface. Reviewed-by: Daniel Machon Signed-off-by: Dave Ertman Tested-by: Sujai Buvaneswaran Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_lag.c | 826 ++++++++++++++++++++++++++++++- 1 file changed, 816 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_lag.c b/drivers/net/ethernet/intel/ice/ice_lag.c index ac4deb5..f054bf6 100644 --- a/drivers/net/ethernet/intel/ice/ice_lag.c +++ b/drivers/net/ethernet/intel/ice/ice_lag.c @@ -10,6 +10,11 @@ #define ICE_LAG_RES_SHARED BIT(14) #define ICE_LAG_RES_VALID BIT(15) +#define LACP_TRAIN_PKT_LEN 16 +static const u8 lacp_train_pkt[LACP_TRAIN_PKT_LEN] = { 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, + 0x88, 0x09, 0, 0 }; + #define ICE_RECIPE_LEN 64 static const u8 ice_dflt_vsi_rcp[ICE_RECIPE_LEN] = { 0x05, 0, 0, 0, 0x20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, @@ -58,6 +63,39 @@ static void ice_lag_set_backup(struct ice_lag *lag) } /** + * netif_is_same_ice - determine if netdev is on the same ice NIC as local PF + * @pf: local PF struct + * @netdev: netdev we are evaluating + */ +static bool netif_is_same_ice(struct ice_pf *pf, struct net_device *netdev) +{ + struct ice_netdev_priv *np; + struct ice_pf *test_pf; + struct ice_vsi *vsi; + + if (!netif_is_ice(netdev)) + return false; + + np = netdev_priv(netdev); + if (!np) + return false; + + vsi = np->vsi; + if (!vsi) + return false; + + test_pf = vsi->back; + if (!test_pf) + return false; + + if (pf->pdev->bus != test_pf->pdev->bus || + pf->pdev->slot != test_pf->pdev->slot) + return false; + + return true; +} + +/** * ice_netdev_to_lag - return pointer to associated lag struct from netdev * @netdev: pointer to net_device struct to query */ @@ -81,6 +119,38 @@ static struct ice_lag *ice_netdev_to_lag(struct net_device *netdev) } /** + * ice_lag_find_hw_by_lport - return an hw struct from bond members lport + * @lag: lag struct + * @lport: lport value to search for + */ +static struct ice_hw * +ice_lag_find_hw_by_lport(struct ice_lag *lag, u8 lport) +{ + struct ice_lag_netdev_list *entry; + struct net_device *tmp_netdev; + struct ice_netdev_priv *np; + struct list_head *tmp; + struct ice_hw *hw; + + list_for_each(tmp, lag->netdev_head) { + entry = list_entry(tmp, struct ice_lag_netdev_list, node); + tmp_netdev = entry->netdev; + if (!tmp_netdev || !netif_is_ice(tmp_netdev)) + continue; + + np = netdev_priv(tmp_netdev); + if (!np || !np->vsi) + continue; + + hw = &np->vsi->back->hw; + if (hw->port_info->lport == lport) + return hw; + } + + return NULL; +} + +/** * ice_lag_find_primary - returns pointer to primary interfaces lag struct * @lag: local interfaces lag struct */ @@ -234,6 +304,123 @@ static void ice_display_lag_info(struct ice_lag *lag) } /** + * ice_lag_qbuf_recfg - generate a buffer of queues for a reconfigure command + * @hw: HW struct that contains the queue contexts + * @qbuf: pointer to buffer to populate + * @vsi_num: index of the VSI in PF space + * @numq: number of queues to search for + * @tc: traffic class that contains the queues + * + * function returns the number of valid queues in buffer + */ +static u16 +ice_lag_qbuf_recfg(struct ice_hw *hw, struct ice_aqc_cfg_txqs_buf *qbuf, + u16 vsi_num, u16 numq, u8 tc) +{ + struct ice_q_ctx *q_ctx; + u16 qid, count = 0; + struct ice_pf *pf; + int i; + + pf = hw->back; + for (i = 0; i < numq; i++) { + q_ctx = ice_get_lan_q_ctx(hw, vsi_num, tc, i); + if (!q_ctx) { + dev_dbg(ice_hw_to_dev(hw), "%s queue %d NO Q CONTEXT\n", + __func__, i); + continue; + } + if (q_ctx->q_teid == ICE_INVAL_TEID) { + dev_dbg(ice_hw_to_dev(hw), "%s queue %d INVAL TEID\n", + __func__, i); + continue; + } + if (q_ctx->q_handle == ICE_INVAL_Q_HANDLE) { + dev_dbg(ice_hw_to_dev(hw), "%s queue %d INVAL Q HANDLE\n", + __func__, i); + continue; + } + + qid = pf->vsi[vsi_num]->txq_map[q_ctx->q_handle]; + qbuf->queue_info[count].q_handle = cpu_to_le16(qid); + qbuf->queue_info[count].tc = tc; + qbuf->queue_info[count].q_teid = cpu_to_le32(q_ctx->q_teid); + count++; + } + + return count; +} + +/** + * ice_lag_get_sched_parent - locate or create a sched node parent + * @hw: HW struct for getting parent in + * @tc: traffic class on parent/node + */ +static struct ice_sched_node * +ice_lag_get_sched_parent(struct ice_hw *hw, u8 tc) +{ + struct ice_sched_node *tc_node, *aggnode, *parent = NULL; + u16 num_nodes[ICE_AQC_TOPO_MAX_LEVEL_NUM] = { 0 }; + struct ice_port_info *pi = hw->port_info; + struct device *dev; + u8 aggl, vsil; + int n; + + dev = ice_hw_to_dev(hw); + + tc_node = ice_sched_get_tc_node(pi, tc); + if (!tc_node) { + dev_warn(dev, "Failure to find TC node for LAG move\n"); + return parent; + } + + aggnode = ice_sched_get_agg_node(pi, tc_node, ICE_DFLT_AGG_ID); + if (!aggnode) { + dev_warn(dev, "Failure to find aggregate node for LAG move\n"); + return parent; + } + + aggl = ice_sched_get_agg_layer(hw); + vsil = ice_sched_get_vsi_layer(hw); + + for (n = aggl + 1; n < vsil; n++) + num_nodes[n] = 1; + + for (n = 0; n < aggnode->num_children; n++) { + parent = ice_sched_get_free_vsi_parent(hw, aggnode->children[n], + num_nodes); + if (parent) + return parent; + } + + /* if free parent not found - add one */ + parent = aggnode; + for (n = aggl + 1; n < vsil; n++) { + u16 num_nodes_added; + u32 first_teid; + int err; + + err = ice_sched_add_nodes_to_layer(pi, tc_node, parent, n, + num_nodes[n], &first_teid, + &num_nodes_added); + if (err || num_nodes[n] != num_nodes_added) + return NULL; + + if (num_nodes_added) + parent = ice_sched_find_node_by_teid(tc_node, + first_teid); + else + parent = parent->children[0]; + if (!parent) { + dev_warn(dev, "Failure to add new parent for LAG move\n"); + return parent; + } + } + + return parent; +} + +/** * ice_lag_move_vf_node_tc - move scheduling nodes for one VF on one TC * @lag: lag info struct * @oldport: lport of previous nodes location @@ -245,6 +432,110 @@ static void ice_lag_move_vf_node_tc(struct ice_lag *lag, u8 oldport, u8 newport, u16 vsi_num, u8 tc) { + u16 numq, valq, buf_size, num_moved, qbuf_size; + struct device *dev = ice_pf_to_dev(lag->pf); + struct ice_aqc_cfg_txqs_buf *qbuf; + struct ice_aqc_move_elem *buf; + struct ice_sched_node *n_prt; + struct ice_hw *new_hw = NULL; + __le32 teid, parent_teid; + struct ice_vsi_ctx *ctx; + u32 tmp_teid; + + ctx = ice_get_vsi_ctx(&lag->pf->hw, vsi_num); + if (!ctx) { + dev_warn(dev, "Unable to locate VSI context for LAG failover\n"); + return; + } + + /* check to see if this VF is enabled on this TC */ + if (!ctx->sched.vsi_node[tc]) + return; + + /* locate HW struct for destination port */ + new_hw = ice_lag_find_hw_by_lport(lag, newport); + if (!new_hw) { + dev_warn(dev, "Unable to locate HW struct for LAG node destination\n"); + return; + } + + numq = ctx->num_lan_q_entries[tc]; + teid = ctx->sched.vsi_node[tc]->info.node_teid; + tmp_teid = le32_to_cpu(teid); + parent_teid = ctx->sched.vsi_node[tc]->info.parent_teid; + /* if no teid assigned or numq == 0, then this TC is not active */ + if (!tmp_teid || !numq) + return; + + /* suspend VSI subtree for Traffic Class "tc" on + * this VF's VSI + */ + if (ice_sched_suspend_resume_elems(&lag->pf->hw, 1, &tmp_teid, true)) + dev_dbg(dev, "Problem suspending traffic for LAG node move\n"); + + /* reconfigure all VF's queues on this Traffic Class + * to new port + */ + qbuf_size = struct_size(qbuf, queue_info, numq); + qbuf = kzalloc(qbuf_size, GFP_KERNEL); + if (!qbuf) { + dev_warn(dev, "Failure allocating memory for VF queue recfg buffer\n"); + goto resume_traffic; + } + + /* add the per queue info for the reconfigure command buffer */ + valq = ice_lag_qbuf_recfg(&lag->pf->hw, qbuf, vsi_num, numq, tc); + if (!valq) { + dev_dbg(dev, "No valid queues found for LAG failover\n"); + goto qbuf_none; + } + + if (ice_aq_cfg_lan_txq(&lag->pf->hw, qbuf, qbuf_size, valq, oldport, + newport, NULL)) { + dev_warn(dev, "Failure to configure queues for LAG failover\n"); + goto qbuf_err; + } + +qbuf_none: + kfree(qbuf); + + /* find new parent in destination port's tree for VF VSI node on this + * Traffic Class + */ + n_prt = ice_lag_get_sched_parent(new_hw, tc); + if (!n_prt) + goto resume_traffic; + + /* Move Vf's VSI node for this TC to newport's scheduler tree */ + buf_size = struct_size(buf, teid, 1); + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) { + dev_warn(dev, "Failure to alloc memory for VF node failover\n"); + goto resume_traffic; + } + + buf->hdr.src_parent_teid = parent_teid; + buf->hdr.dest_parent_teid = n_prt->info.node_teid; + buf->hdr.num_elems = cpu_to_le16(1); + buf->hdr.mode = ICE_AQC_MOVE_ELEM_MODE_KEEP_OWN; + buf->teid[0] = teid; + + if (ice_aq_move_sched_elems(&lag->pf->hw, 1, buf, buf_size, &num_moved, + NULL)) + dev_warn(dev, "Failure to move VF nodes for failover\n"); + else + ice_sched_update_parent(n_prt, ctx->sched.vsi_node[tc]); + + kfree(buf); + goto resume_traffic; + +qbuf_err: + kfree(qbuf); + +resume_traffic: + /* restart traffic for VSI node */ + if (ice_sched_suspend_resume_elems(&lag->pf->hw, 1, &tmp_teid, false)) + dev_dbg(dev, "Problem restarting traffic for LAG node move\n"); } /** @@ -274,6 +565,66 @@ ice_lag_move_single_vf_nodes(struct ice_lag *lag, u8 oldport, u8 newport, */ void ice_lag_move_new_vf_nodes(struct ice_vf *vf) { + struct ice_lag_netdev_list ndlist; + struct list_head *tmp, *n; + u8 pri_port, act_port; + struct ice_lag *lag; + struct ice_vsi *vsi; + struct ice_pf *pf; + + vsi = ice_get_vf_vsi(vf); + + if (WARN_ON(!vsi)) + return; + + if (WARN_ON(vsi->type != ICE_VSI_VF)) + return; + + pf = vf->pf; + lag = pf->lag; + + mutex_lock(&pf->lag_mutex); + if (!lag->bonded) + goto new_vf_unlock; + + pri_port = pf->hw.port_info->lport; + act_port = lag->active_port; + + if (lag->upper_netdev) { + struct ice_lag_netdev_list *nl; + struct net_device *tmp_nd; + + INIT_LIST_HEAD(&ndlist.node); + rcu_read_lock(); + for_each_netdev_in_bond_rcu(lag->upper_netdev, tmp_nd) { + nl = kzalloc(sizeof(*nl), GFP_KERNEL); + if (!nl) + break; + + nl->netdev = tmp_nd; + list_add(&nl->node, &ndlist.node); + } + rcu_read_unlock(); + } + + lag->netdev_head = &ndlist.node; + + if (ice_is_feature_supported(pf, ICE_F_SRIOV_LAG) && + lag->bonded && lag->primary && pri_port != act_port && + !list_empty(lag->netdev_head)) + ice_lag_move_single_vf_nodes(lag, pri_port, act_port, vsi->idx); + + list_for_each_safe(tmp, n, &ndlist.node) { + struct ice_lag_netdev_list *entry; + + entry = list_entry(tmp, struct ice_lag_netdev_list, node); + list_del(&entry->node); + kfree(entry); + } + lag->netdev_head = NULL; + +new_vf_unlock: + mutex_unlock(&pf->lag_mutex); } /** @@ -308,6 +659,50 @@ static void ice_lag_move_vf_nodes(struct ice_lag *lag, u8 oldport, u8 newport) static void ice_lag_cfg_cp_fltr(struct ice_lag *lag, bool add) { + struct ice_sw_rule_lkup_rx_tx *s_rule = NULL; + struct ice_vsi *vsi; + u16 buf_len, opc; + + vsi = lag->pf->vsi[0]; + + buf_len = ICE_SW_RULE_RX_TX_HDR_SIZE(s_rule, + ICE_LAG_SRIOV_TRAIN_PKT_LEN); + s_rule = kzalloc(buf_len, GFP_KERNEL); + if (!s_rule) { + netdev_warn(lag->netdev, "-ENOMEM error configuring CP filter\n"); + return; + } + + if (add) { + s_rule->hdr.type = cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX); + s_rule->recipe_id = cpu_to_le16(ICE_LAG_SRIOV_CP_RECIPE); + s_rule->src = cpu_to_le16(vsi->port_info->lport); + s_rule->act = cpu_to_le32(ICE_FWD_TO_VSI | + ICE_SINGLE_ACT_LAN_ENABLE | + ICE_SINGLE_ACT_VALID_BIT | + ((vsi->vsi_num << + ICE_SINGLE_ACT_VSI_ID_S) & + ICE_SINGLE_ACT_VSI_ID_M)); + s_rule->hdr_len = cpu_to_le16(ICE_LAG_SRIOV_TRAIN_PKT_LEN); + memcpy(s_rule->hdr_data, lacp_train_pkt, LACP_TRAIN_PKT_LEN); + opc = ice_aqc_opc_add_sw_rules; + } else { + opc = ice_aqc_opc_remove_sw_rules; + s_rule->index = cpu_to_le16(lag->cp_rule_idx); + } + if (ice_aq_sw_rules(&lag->pf->hw, s_rule, buf_len, 1, opc, NULL)) { + netdev_warn(lag->netdev, "Error %s CP rule for fail-over\n", + add ? "ADDING" : "REMOVING"); + goto cp_free; + } + + if (add) + lag->cp_rule_idx = le16_to_cpu(s_rule->index); + else + lag->cp_rule_idx = 0; + +cp_free: + kfree(s_rule); } /** @@ -362,6 +757,100 @@ static void ice_lag_reclaim_vf_tc(struct ice_lag *lag, struct ice_hw *src_hw, u16 vsi_num, u8 tc) { + u16 numq, valq, buf_size, num_moved, qbuf_size; + struct device *dev = ice_pf_to_dev(lag->pf); + struct ice_aqc_cfg_txqs_buf *qbuf; + struct ice_aqc_move_elem *buf; + struct ice_sched_node *n_prt; + __le32 teid, parent_teid; + struct ice_vsi_ctx *ctx; + struct ice_hw *hw; + u32 tmp_teid; + + hw = &lag->pf->hw; + ctx = ice_get_vsi_ctx(hw, vsi_num); + if (!ctx) { + dev_warn(dev, "Unable to locate VSI context for LAG reclaim\n"); + return; + } + + /* check to see if this VF is enabled on this TC */ + if (!ctx->sched.vsi_node[tc]) + return; + + numq = ctx->num_lan_q_entries[tc]; + teid = ctx->sched.vsi_node[tc]->info.node_teid; + tmp_teid = le32_to_cpu(teid); + parent_teid = ctx->sched.vsi_node[tc]->info.parent_teid; + + /* if !teid or !numq, then this TC is not active */ + if (!tmp_teid || !numq) + return; + + /* suspend traffic */ + if (ice_sched_suspend_resume_elems(hw, 1, &tmp_teid, true)) + dev_dbg(dev, "Problem suspending traffic for LAG node move\n"); + + /* reconfig queues for new port */ + qbuf_size = struct_size(qbuf, queue_info, numq); + qbuf = kzalloc(qbuf_size, GFP_KERNEL); + if (!qbuf) { + dev_warn(dev, "Failure allocating memory for VF queue recfg buffer\n"); + goto resume_reclaim; + } + + /* add the per queue info for the reconfigure command buffer */ + valq = ice_lag_qbuf_recfg(hw, qbuf, vsi_num, numq, tc); + if (!valq) { + dev_dbg(dev, "No valid queues found for LAG reclaim\n"); + goto reclaim_none; + } + + if (ice_aq_cfg_lan_txq(hw, qbuf, qbuf_size, numq, + src_hw->port_info->lport, hw->port_info->lport, + NULL)) { + dev_warn(dev, "Failure to configure queues for LAG failover\n"); + goto reclaim_qerr; + } + +reclaim_none: + kfree(qbuf); + + /* find parent in primary tree */ + n_prt = ice_lag_get_sched_parent(hw, tc); + if (!n_prt) + goto resume_reclaim; + + /* Move node to new parent */ + buf_size = struct_size(buf, teid, 1); + buf = kzalloc(buf_size, GFP_KERNEL); + if (!buf) { + dev_warn(dev, "Failure to alloc memory for VF node failover\n"); + goto resume_reclaim; + } + + buf->hdr.src_parent_teid = parent_teid; + buf->hdr.dest_parent_teid = n_prt->info.node_teid; + buf->hdr.num_elems = cpu_to_le16(1); + buf->hdr.mode = ICE_AQC_MOVE_ELEM_MODE_KEEP_OWN; + buf->teid[0] = teid; + + if (ice_aq_move_sched_elems(&lag->pf->hw, 1, buf, buf_size, &num_moved, + NULL)) + dev_warn(dev, "Failure to move VF nodes for LAG reclaim\n"); + else + ice_sched_update_parent(n_prt, ctx->sched.vsi_node[tc]); + + kfree(buf); + goto resume_reclaim; + +reclaim_qerr: + kfree(qbuf); + +resume_reclaim: + /* restart traffic */ + if (ice_sched_suspend_resume_elems(hw, 1, &tmp_teid, false)) + dev_warn(dev, "Problem restarting traffic for LAG node reclaim\n"); } /** @@ -476,6 +965,65 @@ static void ice_lag_set_swid(u16 primary_swid, struct ice_lag *local_lag, bool link) { + struct ice_aqc_alloc_free_res_elem *buf; + struct ice_aqc_set_port_params *cmd; + struct ice_aq_desc desc; + u16 buf_len, swid; + int status; + + buf_len = struct_size(buf, elem, 1); + buf = kzalloc(buf_len, GFP_KERNEL); + if (!buf) { + dev_err(ice_pf_to_dev(local_lag->pf), "-ENOMEM error setting SWID\n"); + return; + } + + buf->num_elems = cpu_to_le16(1); + buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_SWID); + /* if unlinnking need to free the shared resource */ + if (!link && local_lag->bond_swid) { + buf->elem[0].e.sw_resp = cpu_to_le16(local_lag->bond_swid); + status = ice_aq_alloc_free_res(&local_lag->pf->hw, 1, buf, + buf_len, ice_aqc_opc_free_res, + NULL); + if (status) + dev_err(ice_pf_to_dev(local_lag->pf), "Error freeing SWID during LAG unlink\n"); + local_lag->bond_swid = 0; + } + + if (link) { + buf->res_type |= cpu_to_le16(ICE_LAG_RES_SHARED | + ICE_LAG_RES_VALID); + /* store the primary's SWID in case it leaves bond first */ + local_lag->bond_swid = primary_swid; + buf->elem[0].e.sw_resp = cpu_to_le16(local_lag->bond_swid); + } else { + buf->elem[0].e.sw_resp = + cpu_to_le16(local_lag->pf->hw.port_info->sw_id); + } + + status = ice_aq_alloc_free_res(&local_lag->pf->hw, 1, buf, buf_len, + ice_aqc_opc_alloc_res, NULL); + if (status) + dev_err(ice_pf_to_dev(local_lag->pf), "Error subscribing to SWID 0x%04X\n", + local_lag->bond_swid); + + kfree(buf); + + /* Configure port param SWID to correct value */ + if (link) + swid = primary_swid; + else + swid = local_lag->pf->hw.port_info->sw_id; + + cmd = &desc.params.set_port_params; + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_port_params); + + cmd->swid = cpu_to_le16(ICE_AQC_PORT_SWID_VALID | swid); + status = ice_aq_send_cmd(&local_lag->pf->hw, &desc, NULL, 0, NULL); + if (status) + dev_err(ice_pf_to_dev(local_lag->pf), "Error setting SWID in port params %d\n", + status); } /** @@ -504,6 +1052,38 @@ static void ice_lag_primary_swid(struct ice_lag *lag, bool link) */ static void ice_lag_add_prune_list(struct ice_lag *lag, struct ice_pf *event_pf) { + u16 num_vsi, rule_buf_sz, vsi_list_id, event_vsi_num, prim_vsi_idx; + struct ice_sw_rule_vsi_list *s_rule = NULL; + struct device *dev; + + num_vsi = 1; + + dev = ice_pf_to_dev(lag->pf); + event_vsi_num = event_pf->vsi[0]->vsi_num; + prim_vsi_idx = lag->pf->vsi[0]->idx; + + if (!ice_find_vsi_list_entry(&lag->pf->hw, ICE_SW_LKUP_VLAN, + prim_vsi_idx, &vsi_list_id)) { + dev_warn(dev, "Could not locate prune list when setting up SRIOV LAG\n"); + return; + } + + rule_buf_sz = (u16)ICE_SW_RULE_VSI_LIST_SIZE(s_rule, num_vsi); + s_rule = kzalloc(rule_buf_sz, GFP_KERNEL); + if (!s_rule) { + dev_warn(dev, "Error allocating space for prune list when configuring SRIOV LAG\n"); + return; + } + + s_rule->hdr.type = cpu_to_le16(ICE_AQC_SW_RULES_T_PRUNE_LIST_SET); + s_rule->index = cpu_to_le16(vsi_list_id); + s_rule->number_vsi = cpu_to_le16(num_vsi); + s_rule->vsi[0] = cpu_to_le16(event_vsi_num); + + if (ice_aq_sw_rules(&event_pf->hw, s_rule, rule_buf_sz, 1, + ice_aqc_opc_update_sw_rules, NULL)) + dev_warn(dev, "Error adding VSI prune list\n"); + kfree(s_rule); } /** @@ -513,6 +1093,39 @@ static void ice_lag_add_prune_list(struct ice_lag *lag, struct ice_pf *event_pf) */ static void ice_lag_del_prune_list(struct ice_lag *lag, struct ice_pf *event_pf) { + u16 num_vsi, vsi_num, vsi_idx, rule_buf_sz, vsi_list_id; + struct ice_sw_rule_vsi_list *s_rule = NULL; + struct device *dev; + + num_vsi = 1; + + dev = ice_pf_to_dev(lag->pf); + vsi_num = event_pf->vsi[0]->vsi_num; + vsi_idx = lag->pf->vsi[0]->idx; + + if (!ice_find_vsi_list_entry(&lag->pf->hw, ICE_SW_LKUP_VLAN, + vsi_idx, &vsi_list_id)) { + dev_warn(dev, "Could not locate prune list when unwinding SRIOV LAG\n"); + return; + } + + rule_buf_sz = (u16)ICE_SW_RULE_VSI_LIST_SIZE(s_rule, num_vsi); + s_rule = kzalloc(rule_buf_sz, GFP_KERNEL); + if (!s_rule) { + dev_warn(dev, "Error allocating prune list when unwinding SRIOV LAG\n"); + return; + } + + s_rule->hdr.type = cpu_to_le16(ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR); + s_rule->index = cpu_to_le16(vsi_list_id); + s_rule->number_vsi = cpu_to_le16(num_vsi); + s_rule->vsi[0] = cpu_to_le16(vsi_num); + + if (ice_aq_sw_rules(&event_pf->hw, (struct ice_aqc_sw_rules *)s_rule, + rule_buf_sz, 1, ice_aqc_opc_update_sw_rules, NULL)) + dev_warn(dev, "Error clearing VSI prune list\n"); + + kfree(s_rule); } /** @@ -539,8 +1152,6 @@ static void ice_lag_init_feature_support_flag(struct ice_pf *pf) * ice_lag_changeupper_event - handle LAG changeupper event * @lag: LAG info struct * @ptr: opaque pointer data - * - * ptr is to be cast into netdev_notifier_changeupper_info */ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr) { @@ -600,6 +1211,40 @@ static void ice_lag_changeupper_event(struct ice_lag *lag, void *ptr) */ static void ice_lag_monitor_link(struct ice_lag *lag, void *ptr) { + struct netdev_notifier_changeupper_info *info; + struct ice_hw *prim_hw, *active_hw; + struct net_device *event_netdev; + struct ice_pf *pf; + u8 prim_port; + + if (!lag->primary) + return; + + event_netdev = netdev_notifier_info_to_dev(ptr); + if (!netif_is_same_ice(lag->pf, event_netdev)) + return; + + pf = lag->pf; + prim_hw = &pf->hw; + prim_port = prim_hw->port_info->lport; + + info = (struct netdev_notifier_changeupper_info *)ptr; + if (info->upper_dev != lag->upper_netdev) + return; + + if (!info->linking) { + /* Since there are only two interfaces allowed in SRIOV+LAG, if + * one port is leaving, then nodes need to be on primary + * interface. + */ + if (prim_port != lag->active_port && + lag->active_port != ICE_LAG_INVALID_PORT) { + active_hw = ice_lag_find_hw_by_lport(lag, + lag->active_port); + ice_lag_reclaim_vf_nodes(lag, active_hw); + lag->active_port = ICE_LAG_INVALID_PORT; + } + } } /** @@ -612,6 +1257,67 @@ static void ice_lag_monitor_link(struct ice_lag *lag, void *ptr) */ static void ice_lag_monitor_active(struct ice_lag *lag, void *ptr) { + struct net_device *event_netdev, *event_upper; + struct netdev_notifier_bonding_info *info; + struct netdev_bonding_info *bonding_info; + struct ice_netdev_priv *event_np; + struct ice_pf *pf, *event_pf; + u8 prim_port, event_port; + + if (!lag->primary) + return; + + pf = lag->pf; + if (!pf) + return; + + event_netdev = netdev_notifier_info_to_dev(ptr); + rcu_read_lock(); + event_upper = netdev_master_upper_dev_get_rcu(event_netdev); + rcu_read_unlock(); + if (!netif_is_ice(event_netdev) || event_upper != lag->upper_netdev) + return; + + event_np = netdev_priv(event_netdev); + event_pf = event_np->vsi->back; + event_port = event_pf->hw.port_info->lport; + prim_port = pf->hw.port_info->lport; + + info = (struct netdev_notifier_bonding_info *)ptr; + bonding_info = &info->bonding_info; + + if (!bonding_info->slave.state) { + /* if no port is currently active, then nodes and filters exist + * on primary port, check if we need to move them + */ + if (lag->active_port == ICE_LAG_INVALID_PORT) { + if (event_port != prim_port) + ice_lag_move_vf_nodes(lag, prim_port, + event_port); + lag->active_port = event_port; + return; + } + + /* active port is already set and is current event port */ + if (lag->active_port == event_port) + return; + /* new active port */ + ice_lag_move_vf_nodes(lag, lag->active_port, event_port); + lag->active_port = event_port; + } else { + /* port not set as currently active (e.g. new active port + * has already claimed the nodes and filters + */ + if (lag->active_port != event_port) + return; + /* This is the case when neither port is active (both link down) + * Link down on the bond - set active port to invalid and move + * nodes and filters back to primary if not already there + */ + if (event_port != prim_port) + ice_lag_move_vf_nodes(lag, event_port, prim_port); + lag->active_port = ICE_LAG_INVALID_PORT; + } } /** @@ -622,6 +1328,68 @@ static void ice_lag_monitor_active(struct ice_lag *lag, void *ptr) static bool ice_lag_chk_comp(struct ice_lag *lag, void *ptr) { + struct net_device *event_netdev, *event_upper; + struct netdev_notifier_bonding_info *info; + struct netdev_bonding_info *bonding_info; + struct list_head *tmp; + int count = 0; + + if (!lag->primary) + return true; + + event_netdev = netdev_notifier_info_to_dev(ptr); + rcu_read_lock(); + event_upper = netdev_master_upper_dev_get_rcu(event_netdev); + rcu_read_unlock(); + if (event_upper != lag->upper_netdev) + return true; + + info = (struct netdev_notifier_bonding_info *)ptr; + bonding_info = &info->bonding_info; + lag->bond_mode = bonding_info->master.bond_mode; + if (lag->bond_mode != BOND_MODE_ACTIVEBACKUP) { + netdev_info(lag->netdev, "Bond Mode not ACTIVE-BACKUP\n"); + return false; + } + + list_for_each(tmp, lag->netdev_head) { + struct ice_dcbx_cfg *dcb_cfg, *peer_dcb_cfg; + struct ice_lag_netdev_list *entry; + struct ice_netdev_priv *peer_np; + struct net_device *peer_netdev; + struct ice_vsi *vsi, *peer_vsi; + + entry = list_entry(tmp, struct ice_lag_netdev_list, node); + peer_netdev = entry->netdev; + if (!netif_is_ice(peer_netdev)) { + netdev_info(lag->netdev, "Found non-ice netdev in LAG\n"); + return false; + } + + count++; + if (count > 2) { + netdev_info(lag->netdev, "Found more than two netdevs in LAG\n"); + return false; + } + + peer_np = netdev_priv(peer_netdev); + vsi = ice_get_main_vsi(lag->pf); + peer_vsi = peer_np->vsi; + if (lag->pf->pdev->bus != peer_vsi->back->pdev->bus || + lag->pf->pdev->slot != peer_vsi->back->pdev->slot) { + netdev_info(lag->netdev, "Found netdev on different device in LAG\n"); + return false; + } + + dcb_cfg = &vsi->port_info->qos_cfg.local_dcbx_cfg; + peer_dcb_cfg = &peer_vsi->port_info->qos_cfg.local_dcbx_cfg; + if (memcmp(dcb_cfg, peer_dcb_cfg, + sizeof(struct ice_dcbx_cfg))) { + netdev_info(lag->netdev, "Found netdev with different DCB config in LAG\n"); + return false; + } + } + return true; } @@ -856,17 +1624,40 @@ static void ice_unregister_lag_handler(struct ice_lag *lag) /** * ice_create_lag_recipe * @hw: pointer to HW struct + * @rid: pointer to u16 to pass back recipe index * @base_recipe: recipe to base the new recipe on * @prio: priority for new recipe * * function returns 0 on error */ -static u16 ice_create_lag_recipe(struct ice_hw *hw, const u8 *base_recipe, - u8 prio) +static int ice_create_lag_recipe(struct ice_hw *hw, u16 *rid, + const u8 *base_recipe, u8 prio) { - u16 rid = 0; + struct ice_aqc_recipe_data_elem *new_rcp; + int err; + + err = ice_alloc_recipe(hw, rid); + if (err) + return err; + + new_rcp = kzalloc(ICE_RECIPE_LEN * ICE_MAX_NUM_RECIPES, GFP_KERNEL); + if (!new_rcp) + return -ENOMEM; + + memcpy(new_rcp, base_recipe, ICE_RECIPE_LEN); + new_rcp->content.act_ctrl_fwd_priority = prio; + new_rcp->content.rid = *rid | ICE_AQ_RECIPE_ID_IS_ROOT; + new_rcp->recipe_indx = *rid; + bitmap_zero((unsigned long *)new_rcp->recipe_bitmap, + ICE_MAX_NUM_RECIPES); + set_bit(*rid, (unsigned long *)new_rcp->recipe_bitmap); - return rid; + err = ice_aq_add_recipe(hw, new_rcp, 1, NULL); + if (err) + *rid = 0; + + kfree(new_rcp); + return err; } /** @@ -881,7 +1672,8 @@ int ice_init_lag(struct ice_pf *pf) struct device *dev = ice_pf_to_dev(pf); struct ice_lag *lag; struct ice_vsi *vsi; - int err; + u64 recipe_bits = 0; + int n, err; ice_lag_init_feature_support_flag(pf); @@ -900,6 +1692,7 @@ int ice_init_lag(struct ice_pf *pf) lag->pf = pf; lag->netdev = vsi->netdev; lag->role = ICE_LAG_NONE; + lag->active_port = ICE_LAG_INVALID_PORT; lag->bonded = false; lag->upper_netdev = NULL; lag->notif_block.notifier_call = NULL; @@ -910,10 +1703,23 @@ int ice_init_lag(struct ice_pf *pf) goto lag_error; } - lag->pf_recipe = ice_create_lag_recipe(&pf->hw, ice_dflt_vsi_rcp, 1); - if (!lag->pf_recipe) { - err = -EINVAL; + err = ice_create_lag_recipe(&pf->hw, &lag->pf_recipe, ice_dflt_vsi_rcp, + 1); + if (err) goto lag_error; + + /* associate recipes to profiles */ + for (n = 0; n < ICE_PROFID_IPV6_GTPU_IPV6_TCP_INNER; n++) { + err = ice_aq_get_recipe_to_profile(&pf->hw, n, + (u8 *)&recipe_bits, NULL); + if (err) + continue; + + if (recipe_bits & BIT(ICE_SW_LKUP_DFLT)) { + recipe_bits |= BIT(lag->pf_recipe); + ice_aq_map_recipe_to_profile(&pf->hw, n, + (u8 *)&recipe_bits, NULL); + } } ice_display_lag_info(lag); -- 2.7.4