diff options
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw_priv.c')
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw_priv.c | 342 |
1 files changed, 274 insertions, 68 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_priv.c b/drivers/net/ethernet/ti/cpsw_priv.c index 97a058ca60ac..758295c898ac 100644 --- a/drivers/net/ethernet/ti/cpsw_priv.c +++ b/drivers/net/ethernet/ti/cpsw_priv.c @@ -28,6 +28,8 @@ #include "cpsw_sl.h" #include "davinci_cpdma.h" +#define CPTS_N_ETX_TS 4 + int (*cpsw_slave_index)(struct cpsw_common *cpsw, struct cpsw_priv *priv); void cpsw_intr_enable(struct cpsw_common *cpsw) @@ -112,6 +114,18 @@ irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } +irqreturn_t cpsw_misc_interrupt(int irq, void *dev_id) +{ + struct cpsw_common *cpsw = dev_id; + + writel(0, &cpsw->wr_regs->misc_en); + cpdma_ctlr_eoi(cpsw->dma, CPDMA_EOI_MISC); + cpts_misc_interrupt(cpsw->cpts); + writel(0x10, &cpsw->wr_regs->misc_en); + + return IRQ_HANDLED; +} + int cpsw_tx_mq_poll(struct napi_struct *napi_tx, int budget) { struct cpsw_common *cpsw = napi_to_cpsw(napi_tx); @@ -350,7 +364,7 @@ void cpsw_split_res(struct cpsw_common *cpsw) if (cpsw->tx_ch_num == rlim_ch_num) { max_rate = consumed_rate; } else if (!rlim_ch_num) { - ch_budget = CPSW_POLL_WEIGHT / cpsw->tx_ch_num; + ch_budget = NAPI_POLL_WEIGHT / cpsw->tx_ch_num; bigest_rate = 0; max_rate = consumed_rate; } else { @@ -365,19 +379,19 @@ void cpsw_split_res(struct cpsw_common *cpsw) if (max_rate < consumed_rate) max_rate *= 10; - ch_budget = (consumed_rate * CPSW_POLL_WEIGHT) / max_rate; - ch_budget = (CPSW_POLL_WEIGHT - ch_budget) / + ch_budget = (consumed_rate * NAPI_POLL_WEIGHT) / max_rate; + ch_budget = (NAPI_POLL_WEIGHT - ch_budget) / (cpsw->tx_ch_num - rlim_ch_num); bigest_rate = (max_rate - consumed_rate) / (cpsw->tx_ch_num - rlim_ch_num); } /* split tx weight/budget */ - budget = CPSW_POLL_WEIGHT; + budget = NAPI_POLL_WEIGHT; for (i = 0; i < cpsw->tx_ch_num; i++) { ch_rate = cpdma_chan_get_rate(txv[i].ch); if (ch_rate) { - txv[i].budget = (ch_rate * CPSW_POLL_WEIGHT) / max_rate; + txv[i].budget = (ch_rate * NAPI_POLL_WEIGHT) / max_rate; if (!txv[i].budget) txv[i].budget++; if (ch_rate > bigest_rate) { @@ -403,7 +417,7 @@ void cpsw_split_res(struct cpsw_common *cpsw) txv[bigest_rate_ch].budget += budget; /* split rx budget */ - budget = CPSW_POLL_WEIGHT; + budget = NAPI_POLL_WEIGHT; ch_budget = budget / cpsw->rx_ch_num; for (i = 0; i < cpsw->rx_ch_num; i++) { cpsw->rxv[i].budget = ch_budget; @@ -486,13 +500,14 @@ int cpsw_init_common(struct cpsw_common *cpsw, void __iomem *ss_regs, ale_params.dev = dev; ale_params.ale_ageout = ale_ageout; - ale_params.ale_entries = data->ale_entries; ale_params.ale_ports = CPSW_ALE_PORTS_NUM; + ale_params.dev_id = "cpsw"; + ale_params.bus_freq = cpsw->bus_freq_mhz * 1000000; cpsw->ale = cpsw_ale_create(&ale_params); - if (!cpsw->ale) { + if (IS_ERR(cpsw->ale)) { dev_err(dev, "error initializing ale engine\n"); - return -ENODEV; + return PTR_ERR(cpsw->ale); } dma_params.dev = dev; @@ -522,7 +537,8 @@ int cpsw_init_common(struct cpsw_common *cpsw, void __iomem *ss_regs, if (!cpts_node) cpts_node = cpsw->dev->of_node; - cpsw->cpts = cpts_create(cpsw->dev, cpts_regs, cpts_node); + cpsw->cpts = cpts_create(cpsw->dev, cpts_regs, cpts_node, + CPTS_N_ETX_TS); if (IS_ERR(cpsw->cpts)) { ret = PTR_ERR(cpsw->cpts); cpdma_ctlr_destroy(cpsw->dma); @@ -611,10 +627,6 @@ static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) return -EFAULT; - /* reserved for future extensions */ - if (cfg.flags) - return -EINVAL; - if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON) return -ERANGE; @@ -624,13 +636,10 @@ static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr) break; case HWTSTAMP_FILTER_ALL: case HWTSTAMP_FILTER_NTP_ALL: - return -ERANGE; case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: - priv->rx_ts_enabled = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; - cfg.rx_filter = HWTSTAMP_FILTER_PTP_V1_L4_EVENT; - break; + return -ERANGE; case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: @@ -698,20 +707,26 @@ int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) struct cpsw_priv *priv = netdev_priv(dev); struct cpsw_common *cpsw = priv->cpsw; int slave_no = cpsw_slave_index(cpsw, priv); + struct phy_device *phy; if (!netif_running(dev)) return -EINVAL; - switch (cmd) { - case SIOCSHWTSTAMP: - return cpsw_hwtstamp_set(dev, req); - case SIOCGHWTSTAMP: - return cpsw_hwtstamp_get(dev, req); + phy = cpsw->slaves[slave_no].phy; + + if (!phy_has_hwtstamp(phy)) { + switch (cmd) { + case SIOCSHWTSTAMP: + return cpsw_hwtstamp_set(dev, req); + case SIOCGHWTSTAMP: + return cpsw_hwtstamp_get(dev, req); + } } - if (!cpsw->slaves[slave_no].phy) - return -EOPNOTSUPP; - return phy_mii_ioctl(cpsw->slaves[slave_no].phy, req, cmd); + if (phy) + return phy_mii_ioctl(phy, req, cmd); + + return -EOPNOTSUPP; } int cpsw_ndo_set_tx_maxrate(struct net_device *ndev, int queue, u32 rate) @@ -740,11 +755,9 @@ int cpsw_ndo_set_tx_maxrate(struct net_device *ndev, int queue, u32 rate) return -EINVAL; } - ret = pm_runtime_get_sync(cpsw->dev); - if (ret < 0) { - pm_runtime_put_noidle(cpsw->dev); + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) return ret; - } ret = cpdma_chan_set_rate(cpsw->txv[queue].ch, ch_rate); pm_runtime_put(cpsw->dev); @@ -956,11 +969,9 @@ static int cpsw_set_cbs(struct net_device *ndev, return -1; } - ret = pm_runtime_get_sync(cpsw->dev); - if (ret < 0) { - pm_runtime_put_noidle(cpsw->dev); + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) return ret; - } bw = qopt->enable ? qopt->idleslope : 0; ret = cpsw_set_fifo_rlimit(priv, fifo, bw); @@ -994,11 +1005,9 @@ static int cpsw_set_mqprio(struct net_device *ndev, void *type_data) if (mqprio->mode != TC_MQPRIO_MODE_DCB) return -EINVAL; - ret = pm_runtime_get_sync(cpsw->dev); - if (ret < 0) { - pm_runtime_put_noidle(cpsw->dev); + ret = pm_runtime_resume_and_get(cpsw->dev); + if (ret < 0) return ret; - } if (num_tc) { for (i = 0; i < 8; i++) { @@ -1034,6 +1043,8 @@ static int cpsw_set_mqprio(struct net_device *ndev, void *type_data) return 0; } +static int cpsw_qos_setup_tc_block(struct net_device *ndev, struct flow_block_offload *f); + int cpsw_ndo_setup_tc(struct net_device *ndev, enum tc_setup_type type, void *type_data) { @@ -1044,6 +1055,9 @@ int cpsw_ndo_setup_tc(struct net_device *ndev, enum tc_setup_type type, case TC_SETUP_QDISC_MQPRIO: return cpsw_set_mqprio(ndev, type_data); + case TC_SETUP_BLOCK: + return cpsw_qos_setup_tc_block(ndev, type_data); + default: return -EOPNOTSUPP; } @@ -1108,7 +1122,7 @@ int cpsw_fill_rx_channels(struct cpsw_priv *priv) xmeta->ndev = priv->ndev; xmeta->ch = ch; - dma = page_pool_get_dma_addr(page) + CPSW_HEADROOM; + dma = page_pool_get_dma_addr(page) + CPSW_HEADROOM_NA; ret = cpdma_chan_idle_submit_mapped(cpsw->rxv[ch].ch, page, dma, cpsw->rx_packet_max, @@ -1132,7 +1146,7 @@ int cpsw_fill_rx_channels(struct cpsw_priv *priv) static struct page_pool *cpsw_create_page_pool(struct cpsw_common *cpsw, int size) { - struct page_pool_params pp_params; + struct page_pool_params pp_params = {}; struct page_pool *pool; pp_params.order = 0; @@ -1174,7 +1188,7 @@ static int cpsw_ndev_create_xdp_rxq(struct cpsw_priv *priv, int ch) pool = cpsw->page_pool[ch]; rxq = &priv->xdp_rxq[ch]; - ret = xdp_rxq_info_reg(rxq, priv->ndev, ch); + ret = xdp_rxq_info_reg(rxq, priv->ndev, ch, 0); if (ret) return ret; @@ -1253,9 +1267,6 @@ static int cpsw_xdp_prog_setup(struct cpsw_priv *priv, struct netdev_bpf *bpf) if (!priv->xdpi.prog && !prog) return 0; - if (!xdp_attachment_flags_ok(&priv->xdpi, bpf)) - return -EBUSY; - WRITE_ONCE(priv->xdp_prog, prog); xdp_attachment_setup(&priv->xdpi, bpf); @@ -1271,9 +1282,6 @@ int cpsw_ndo_bpf(struct net_device *ndev, struct netdev_bpf *bpf) case XDP_SETUP_PROG: return cpsw_xdp_prog_setup(priv, bpf); - case XDP_QUERY_PROG: - return xdp_attachment_query(&priv->xdpi, bpf); - default: return -EINVAL; } @@ -1299,25 +1307,21 @@ int cpsw_xdp_tx_frame(struct cpsw_priv *priv, struct xdp_frame *xdpf, ret = cpdma_chan_submit_mapped(txch, cpsw_xdpf_to_handle(xdpf), dma, xdpf->len, port); } else { - if (sizeof(*xmeta) > xdpf->headroom) { - xdp_return_frame_rx_napi(xdpf); + if (sizeof(*xmeta) > xdpf->headroom) return -EINVAL; - } ret = cpdma_chan_submit(txch, cpsw_xdpf_to_handle(xdpf), xdpf->data, xdpf->len, port); } - if (ret) { + if (ret) priv->ndev->stats.tx_dropped++; - xdp_return_frame_rx_napi(xdpf); - } return ret; } int cpsw_run_xdp(struct cpsw_priv *priv, int ch, struct xdp_buff *xdp, - struct page *page, int port) + struct page *page, int port, int *len) { struct cpsw_common *cpsw = priv->cpsw; struct net_device *ndev = priv->ndev; @@ -1326,25 +1330,25 @@ int cpsw_run_xdp(struct cpsw_priv *priv, int ch, struct xdp_buff *xdp, struct bpf_prog *prog; u32 act; - rcu_read_lock(); - prog = READ_ONCE(priv->xdp_prog); - if (!prog) { - ret = CPSW_XDP_PASS; - goto out; - } + if (!prog) + return CPSW_XDP_PASS; act = bpf_prog_run_xdp(prog, xdp); + /* XDP prog might have changed packet data and boundaries */ + *len = xdp->data_end - xdp->data; + switch (act) { case XDP_PASS: ret = CPSW_XDP_PASS; - break; + goto out; case XDP_TX: - xdpf = convert_to_xdp_frame(xdp); + xdpf = xdp_convert_buff_to_frame(xdp); if (unlikely(!xdpf)) goto drop; - cpsw_xdp_tx_frame(priv, xdpf, page, port); + if (cpsw_xdp_tx_frame(priv, xdpf, page, port)) + xdp_return_frame_rx_napi(xdpf); break; case XDP_REDIRECT: if (xdp_do_redirect(ndev, xdp, prog)) @@ -1358,19 +1362,221 @@ int cpsw_run_xdp(struct cpsw_priv *priv, int ch, struct xdp_buff *xdp, xdp_do_flush_map(); break; default: - bpf_warn_invalid_xdp_action(act); - /* fall through */ + bpf_warn_invalid_xdp_action(ndev, prog, act); + fallthrough; case XDP_ABORTED: trace_xdp_exception(ndev, prog, act); - /* fall through -- handle aborts by dropping packet */ + fallthrough; /* handle aborts by dropping packet */ case XDP_DROP: + ndev->stats.rx_bytes += *len; + ndev->stats.rx_packets++; goto drop; } + + ndev->stats.rx_bytes += *len; + ndev->stats.rx_packets++; out: - rcu_read_unlock(); return ret; drop: - rcu_read_unlock(); page_pool_recycle_direct(cpsw->page_pool[ch], page); return ret; } + +static int cpsw_qos_clsflower_add_policer(struct cpsw_priv *priv, + struct netlink_ext_ack *extack, + struct flow_cls_offload *cls, + u64 rate_pkt_ps) +{ + struct flow_rule *rule = flow_cls_offload_flow_rule(cls); + struct flow_dissector *dissector = rule->match.dissector; + static const u8 mc_mac[] = {0x01, 0x00, 0x00, 0x00, 0x00, 0x00}; + struct flow_match_eth_addrs match; + u32 port_id; + int ret; + + if (dissector->used_keys & + ~(BIT(FLOW_DISSECTOR_KEY_BASIC) | + BIT(FLOW_DISSECTOR_KEY_CONTROL) | + BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS))) { + NL_SET_ERR_MSG_MOD(extack, + "Unsupported keys used"); + return -EOPNOTSUPP; + } + + if (!flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) { + NL_SET_ERR_MSG_MOD(extack, "Not matching on eth address"); + return -EOPNOTSUPP; + } + + flow_rule_match_eth_addrs(rule, &match); + + if (!is_zero_ether_addr(match.mask->src)) { + NL_SET_ERR_MSG_MOD(extack, + "Matching on source MAC not supported"); + return -EOPNOTSUPP; + } + + port_id = cpsw_slave_index(priv->cpsw, priv) + 1; + + if (is_broadcast_ether_addr(match.key->dst) && + is_broadcast_ether_addr(match.mask->dst)) { + ret = cpsw_ale_rx_ratelimit_bc(priv->cpsw->ale, port_id, rate_pkt_ps); + if (ret) + return ret; + + priv->ale_bc_ratelimit.cookie = cls->cookie; + priv->ale_bc_ratelimit.rate_packet_ps = rate_pkt_ps; + } else if (ether_addr_equal_unaligned(match.key->dst, mc_mac) && + ether_addr_equal_unaligned(match.mask->dst, mc_mac)) { + ret = cpsw_ale_rx_ratelimit_mc(priv->cpsw->ale, port_id, rate_pkt_ps); + if (ret) + return ret; + + priv->ale_mc_ratelimit.cookie = cls->cookie; + priv->ale_mc_ratelimit.rate_packet_ps = rate_pkt_ps; + } else { + NL_SET_ERR_MSG_MOD(extack, "Not supported matching key"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int cpsw_qos_clsflower_policer_validate(const struct flow_action *action, + const struct flow_action_entry *act, + struct netlink_ext_ack *extack) +{ + if (act->police.exceed.act_id != FLOW_ACTION_DROP) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when exceed action is not drop"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id != FLOW_ACTION_PIPE && + act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is not pipe or ok"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT && + !flow_action_is_last_entry(action, act)) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is ok, but action is not last"); + return -EOPNOTSUPP; + } + + if (act->police.rate_bytes_ps || act->police.peakrate_bytes_ps || + act->police.avrate || act->police.overhead) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when bytes per second/peakrate/avrate/overhead is configured"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int cpsw_qos_configure_clsflower(struct cpsw_priv *priv, struct flow_cls_offload *cls) +{ + struct flow_rule *rule = flow_cls_offload_flow_rule(cls); + struct netlink_ext_ack *extack = cls->common.extack; + const struct flow_action_entry *act; + int i, ret; + + flow_action_for_each(i, act, &rule->action) { + switch (act->id) { + case FLOW_ACTION_POLICE: + ret = cpsw_qos_clsflower_policer_validate(&rule->action, act, extack); + if (ret) + return ret; + + return cpsw_qos_clsflower_add_policer(priv, extack, cls, + act->police.rate_pkt_ps); + default: + NL_SET_ERR_MSG_MOD(extack, "Action not supported"); + return -EOPNOTSUPP; + } + } + return -EOPNOTSUPP; +} + +static int cpsw_qos_delete_clsflower(struct cpsw_priv *priv, struct flow_cls_offload *cls) +{ + u32 port_id = cpsw_slave_index(priv->cpsw, priv) + 1; + + if (cls->cookie == priv->ale_bc_ratelimit.cookie) { + priv->ale_bc_ratelimit.cookie = 0; + priv->ale_bc_ratelimit.rate_packet_ps = 0; + cpsw_ale_rx_ratelimit_bc(priv->cpsw->ale, port_id, 0); + } + + if (cls->cookie == priv->ale_mc_ratelimit.cookie) { + priv->ale_mc_ratelimit.cookie = 0; + priv->ale_mc_ratelimit.rate_packet_ps = 0; + cpsw_ale_rx_ratelimit_mc(priv->cpsw->ale, port_id, 0); + } + + return 0; +} + +static int cpsw_qos_setup_tc_clsflower(struct cpsw_priv *priv, struct flow_cls_offload *cls_flower) +{ + switch (cls_flower->command) { + case FLOW_CLS_REPLACE: + return cpsw_qos_configure_clsflower(priv, cls_flower); + case FLOW_CLS_DESTROY: + return cpsw_qos_delete_clsflower(priv, cls_flower); + default: + return -EOPNOTSUPP; + } +} + +static int cpsw_qos_setup_tc_block_cb(enum tc_setup_type type, void *type_data, void *cb_priv) +{ + struct cpsw_priv *priv = cb_priv; + int ret; + + if (!tc_cls_can_offload_and_chain0(priv->ndev, type_data)) + return -EOPNOTSUPP; + + ret = pm_runtime_get_sync(priv->dev); + if (ret < 0) { + pm_runtime_put_noidle(priv->dev); + return ret; + } + + switch (type) { + case TC_SETUP_CLSFLOWER: + ret = cpsw_qos_setup_tc_clsflower(priv, type_data); + break; + default: + ret = -EOPNOTSUPP; + } + + pm_runtime_put(priv->dev); + return ret; +} + +static LIST_HEAD(cpsw_qos_block_cb_list); + +static int cpsw_qos_setup_tc_block(struct net_device *ndev, struct flow_block_offload *f) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + + return flow_block_cb_setup_simple(f, &cpsw_qos_block_cb_list, + cpsw_qos_setup_tc_block_cb, + priv, priv, true); +} + +void cpsw_qos_clsflower_resume(struct cpsw_priv *priv) +{ + u32 port_id = cpsw_slave_index(priv->cpsw, priv) + 1; + + if (priv->ale_bc_ratelimit.cookie) + cpsw_ale_rx_ratelimit_bc(priv->cpsw->ale, port_id, + priv->ale_bc_ratelimit.rate_packet_ps); + + if (priv->ale_mc_ratelimit.cookie) + cpsw_ale_rx_ratelimit_mc(priv->cpsw->ale, port_id, + priv->ale_mc_ratelimit.rate_packet_ps); +} |