diff options
Diffstat (limited to 'drivers/net/ethernet/ti')
-rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 159 | ||||
-rw-r--r-- | drivers/net/ethernet/ti/davinci_emac.c | 48 | ||||
-rw-r--r-- | drivers/net/ethernet/ti/tlan.c | 4 |
3 files changed, 170 insertions, 41 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 80cad06e5eb..1d740423a05 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -126,6 +126,13 @@ do { \ #define CPSW_FIFO_DUAL_MAC_MODE (1 << 15) #define CPSW_FIFO_RATE_LIMIT_MODE (2 << 15) +#define CPSW_INTPACEEN (0x3f << 16) +#define CPSW_INTPRESCALE_MASK (0x7FF << 0) +#define CPSW_CMINTMAX_CNT 63 +#define CPSW_CMINTMIN_CNT 2 +#define CPSW_CMINTMAX_INTVL (1000 / CPSW_CMINTMIN_CNT) +#define CPSW_CMINTMIN_INTVL ((1000 / CPSW_CMINTMAX_CNT) + 1) + #define cpsw_enable_irq(priv) \ do { \ u32 i; \ @@ -139,6 +146,10 @@ do { \ disable_irq_nosync(priv->irqs_table[i]); \ } while (0); +#define cpsw_slave_index(priv) \ + ((priv->data.dual_emac) ? priv->emac_port : \ + priv->data.active_slave) + static int debug_level; module_param(debug_level, int, 0); MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)"); @@ -160,6 +171,15 @@ struct cpsw_wr_regs { u32 rx_en; u32 tx_en; u32 misc_en; + u32 mem_allign1[8]; + u32 rx_thresh_stat; + u32 rx_stat; + u32 tx_stat; + u32 misc_stat; + u32 mem_allign2[8]; + u32 rx_imax; + u32 tx_imax; + }; struct cpsw_ss_regs { @@ -314,6 +334,8 @@ struct cpsw_priv { struct cpsw_host_regs __iomem *host_port_regs; u32 msg_enable; u32 version; + u32 coal_intvl; + u32 bus_freq_mhz; struct net_device_stats stats; int rx_packet_max; int host_port; @@ -612,6 +634,77 @@ static void cpsw_adjust_link(struct net_device *ndev) } } +static int cpsw_get_coalesce(struct net_device *ndev, + struct ethtool_coalesce *coal) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + + coal->rx_coalesce_usecs = priv->coal_intvl; + return 0; +} + +static int cpsw_set_coalesce(struct net_device *ndev, + struct ethtool_coalesce *coal) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + u32 int_ctrl; + u32 num_interrupts = 0; + u32 prescale = 0; + u32 addnl_dvdr = 1; + u32 coal_intvl = 0; + + if (!coal->rx_coalesce_usecs) + return -EINVAL; + + coal_intvl = coal->rx_coalesce_usecs; + + int_ctrl = readl(&priv->wr_regs->int_control); + prescale = priv->bus_freq_mhz * 4; + + if (coal_intvl < CPSW_CMINTMIN_INTVL) + coal_intvl = CPSW_CMINTMIN_INTVL; + + if (coal_intvl > CPSW_CMINTMAX_INTVL) { + /* Interrupt pacer works with 4us Pulse, we can + * throttle further by dilating the 4us pulse. + */ + addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale; + + if (addnl_dvdr > 1) { + prescale *= addnl_dvdr; + if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr)) + coal_intvl = (CPSW_CMINTMAX_INTVL + * addnl_dvdr); + } else { + addnl_dvdr = 1; + coal_intvl = CPSW_CMINTMAX_INTVL; + } + } + + num_interrupts = (1000 * addnl_dvdr) / coal_intvl; + writel(num_interrupts, &priv->wr_regs->rx_imax); + writel(num_interrupts, &priv->wr_regs->tx_imax); + + int_ctrl |= CPSW_INTPACEEN; + int_ctrl &= (~CPSW_INTPRESCALE_MASK); + int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK); + writel(int_ctrl, &priv->wr_regs->int_control); + + cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl); + if (priv->data.dual_emac) { + int i; + + for (i = 0; i < priv->data.slaves; i++) { + priv = netdev_priv(priv->slaves[i].ndev); + priv->coal_intvl = coal_intvl; + } + } else { + priv->coal_intvl = coal_intvl; + } + + return 0; +} + static inline int __show_stat(char *buf, int maxlen, const char *name, u32 val) { static char *leader = "........................................"; @@ -834,6 +927,14 @@ static int cpsw_ndo_open(struct net_device *ndev) cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i); } + /* Enable Interrupt pacing if configured */ + if (priv->coal_intvl != 0) { + struct ethtool_coalesce coal; + + coal.rx_coalesce_usecs = (priv->coal_intvl << 4); + cpsw_set_coalesce(ndev, &coal); + } + cpdma_ctlr_start(priv->dma); cpsw_intr_enable(priv); napi_enable(&priv->napi); @@ -942,7 +1043,7 @@ static void cpsw_ndo_change_rx_flags(struct net_device *ndev, int flags) static void cpsw_hwtstamp_v1(struct cpsw_priv *priv) { - struct cpsw_slave *slave = &priv->slaves[priv->data.cpts_active_slave]; + struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave]; u32 ts_en, seq_id; if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) { @@ -971,7 +1072,7 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv) if (priv->data.dual_emac) slave = &priv->slaves[priv->emac_port]; else - slave = &priv->slaves[priv->data.cpts_active_slave]; + slave = &priv->slaves[priv->data.active_slave]; ctrl = slave_read(slave, CPSW2_CONTROL); ctrl &= ~CTRL_ALL_TS_MASK; @@ -1056,14 +1157,26 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr) static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd) { + struct cpsw_priv *priv = netdev_priv(dev); + struct mii_ioctl_data *data = if_mii(req); + int slave_no = cpsw_slave_index(priv); + if (!netif_running(dev)) return -EINVAL; + switch (cmd) { #ifdef CONFIG_TI_CPTS - if (cmd == SIOCSHWTSTAMP) + case SIOCSHWTSTAMP: return cpsw_hwtstamp_ioctl(dev, req); #endif - return -ENOTSUPP; + case SIOCGMIIPHY: + data->phy_id = priv->slaves[slave_no].phy->addr; + break; + default: + return -ENOTSUPP; + } + + return 0; } static void cpsw_ndo_tx_timeout(struct net_device *ndev) @@ -1244,12 +1357,39 @@ static int cpsw_get_ts_info(struct net_device *ndev, return 0; } +static int cpsw_get_settings(struct net_device *ndev, + struct ethtool_cmd *ecmd) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + int slave_no = cpsw_slave_index(priv); + + if (priv->slaves[slave_no].phy) + return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd); + else + return -EOPNOTSUPP; +} + +static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd) +{ + struct cpsw_priv *priv = netdev_priv(ndev); + int slave_no = cpsw_slave_index(priv); + + if (priv->slaves[slave_no].phy) + return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd); + else + return -EOPNOTSUPP; +} + static const struct ethtool_ops cpsw_ethtool_ops = { .get_drvinfo = cpsw_get_drvinfo, .get_msglevel = cpsw_get_msglevel, .set_msglevel = cpsw_set_msglevel, .get_link = ethtool_op_get_link, .get_ts_info = cpsw_get_ts_info, + .get_settings = cpsw_get_settings, + .set_settings = cpsw_set_settings, + .get_coalesce = cpsw_get_coalesce, + .set_coalesce = cpsw_set_coalesce, }; static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv, @@ -1282,12 +1422,12 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data, } data->slaves = prop; - if (of_property_read_u32(node, "cpts_active_slave", &prop)) { - pr_err("Missing cpts_active_slave property in the DT.\n"); + if (of_property_read_u32(node, "active_slave", &prop)) { + pr_err("Missing active_slave property in the DT.\n"); ret = -EINVAL; goto error_ret; } - data->cpts_active_slave = prop; + data->active_slave = prop; if (of_property_read_u32(node, "cpts_clock_mult", &prop)) { pr_err("Missing cpts_clock_mult property in the DT.\n"); @@ -1437,6 +1577,9 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev, priv_sl2->slaves = priv->slaves; priv_sl2->clk = priv->clk; + priv_sl2->coal_intvl = 0; + priv_sl2->bus_freq_mhz = priv->bus_freq_mhz; + priv_sl2->cpsw_res = priv->cpsw_res; priv_sl2->regs = priv->regs; priv_sl2->host_port = priv->host_port; @@ -1546,6 +1689,8 @@ static int cpsw_probe(struct platform_device *pdev) ret = -ENODEV; goto clean_slave_ret; } + priv->coal_intvl = 0; + priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000; priv->cpsw_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!priv->cpsw_res) { diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 72300bc9e37..6a0b47715a8 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -1438,7 +1438,7 @@ static int emac_poll(struct napi_struct *napi, int budget) * Polled functionality used by netconsole and others in non interrupt mode * */ -void emac_poll_controller(struct net_device *ndev) +static void emac_poll_controller(struct net_device *ndev) { struct emac_priv *priv = netdev_priv(ndev); @@ -1865,21 +1865,18 @@ static int davinci_emac_probe(struct platform_device *pdev) /* obtain emac clock from kernel */ - emac_clk = clk_get(&pdev->dev, NULL); + emac_clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(emac_clk)) { dev_err(&pdev->dev, "failed to get EMAC clock\n"); return -EBUSY; } emac_bus_frequency = clk_get_rate(emac_clk); - clk_put(emac_clk); /* TODO: Probe PHY here if possible */ ndev = alloc_etherdev(sizeof(struct emac_priv)); - if (!ndev) { - rc = -ENOMEM; - goto no_ndev; - } + if (!ndev) + return -ENOMEM; platform_set_drvdata(pdev, ndev); priv = netdev_priv(ndev); @@ -1893,7 +1890,7 @@ static int davinci_emac_probe(struct platform_device *pdev) if (!pdata) { dev_err(&pdev->dev, "no platform data\n"); rc = -ENODEV; - goto probe_quit; + goto no_pdata; } /* MAC addr and PHY mask , RMII enable info from platform_data */ @@ -1913,23 +1910,23 @@ static int davinci_emac_probe(struct platform_device *pdev) if (!res) { dev_err(&pdev->dev,"error getting res\n"); rc = -ENOENT; - goto probe_quit; + goto no_pdata; } priv->emac_base_phys = res->start + pdata->ctrl_reg_offset; size = resource_size(res); - if (!request_mem_region(res->start, size, ndev->name)) { + if (!devm_request_mem_region(&pdev->dev, res->start, + size, ndev->name)) { dev_err(&pdev->dev, "failed request_mem_region() for regs\n"); rc = -ENXIO; - goto probe_quit; + goto no_pdata; } - priv->remap_addr = ioremap(res->start, size); + priv->remap_addr = devm_ioremap(&pdev->dev, res->start, size); if (!priv->remap_addr) { dev_err(&pdev->dev, "unable to map IO\n"); rc = -ENOMEM; - release_mem_region(res->start, size); - goto probe_quit; + goto no_pdata; } priv->emac_base = priv->remap_addr + pdata->ctrl_reg_offset; ndev->base_addr = (unsigned long)priv->remap_addr; @@ -1962,7 +1959,7 @@ static int davinci_emac_probe(struct platform_device *pdev) if (!priv->dma) { dev_err(&pdev->dev, "error initializing DMA\n"); rc = -ENOMEM; - goto no_dma; + goto no_pdata; } priv->txchan = cpdma_chan_create(priv->dma, tx_chan_num(EMAC_DEF_TX_CH), @@ -1971,14 +1968,14 @@ static int davinci_emac_probe(struct platform_device *pdev) emac_rx_handler); if (WARN_ON(!priv->txchan || !priv->rxchan)) { rc = -ENOMEM; - goto no_irq_res; + goto no_cpdma_chan; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(&pdev->dev, "error getting irq res\n"); rc = -ENOENT; - goto no_irq_res; + goto no_cpdma_chan; } ndev->irq = res->start; @@ -2000,7 +1997,7 @@ static int davinci_emac_probe(struct platform_device *pdev) if (rc) { dev_err(&pdev->dev, "error in register_netdev\n"); rc = -ENODEV; - goto no_irq_res; + goto no_cpdma_chan; } @@ -2015,20 +2012,14 @@ static int davinci_emac_probe(struct platform_device *pdev) return 0; -no_irq_res: +no_cpdma_chan: if (priv->txchan) cpdma_chan_destroy(priv->txchan); if (priv->rxchan) cpdma_chan_destroy(priv->rxchan); cpdma_ctlr_destroy(priv->dma); -no_dma: - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, resource_size(res)); - iounmap(priv->remap_addr); - -probe_quit: +no_pdata: free_netdev(ndev); -no_ndev: return rc; } @@ -2041,14 +2032,12 @@ no_ndev: */ static int davinci_emac_remove(struct platform_device *pdev) { - struct resource *res; struct net_device *ndev = platform_get_drvdata(pdev); struct emac_priv *priv = netdev_priv(ndev); dev_notice(&ndev->dev, "DaVinci EMAC: davinci_emac_remove()\n"); platform_set_drvdata(pdev, NULL); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (priv->txchan) cpdma_chan_destroy(priv->txchan); @@ -2056,10 +2045,7 @@ static int davinci_emac_remove(struct platform_device *pdev) cpdma_chan_destroy(priv->rxchan); cpdma_ctlr_destroy(priv->dma); - release_mem_region(res->start, resource_size(res)); - unregister_netdev(ndev); - iounmap(priv->remap_addr); free_netdev(ndev); return 0; diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c index 22725386c5d..bdda36f8e54 100644 --- a/drivers/net/ethernet/ti/tlan.c +++ b/drivers/net/ethernet/ti/tlan.c @@ -1911,10 +1911,8 @@ static void tlan_reset_lists(struct net_device *dev) list->frame_size = TLAN_MAX_FRAME_SIZE; list->buffer[0].count = TLAN_MAX_FRAME_SIZE | TLAN_LAST_BUFFER; skb = netdev_alloc_skb_ip_align(dev, TLAN_MAX_FRAME_SIZE + 5); - if (!skb) { - netdev_err(dev, "Out of memory for received data\n"); + if (!skb) break; - } list->buffer[0].address = pci_map_single(priv->pci_dev, skb->data, |