From 61c7a080a5a061c976988fd4b844dfb468dda255 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 13 Apr 2010 16:12:29 -0700 Subject: of: Always use 'struct device.of_node' to get device node pointer. The following structure elements duplicate the information in 'struct device.of_node' and so are being eliminated. This patch makes all readers of these elements use device.of_node instead. (struct of_device *)->node (struct dev_archdata *)->prom_node (sparc) (struct dev_archdata *)->of_node (powerpc & microblaze) Signed-off-by: Grant Likely --- drivers/net/can/sja1000/sja1000_of_platform.c | 4 ++-- drivers/net/ehea/ehea_main.c | 14 +++++++------- drivers/net/fec_mpc52xx.c | 12 ++++++------ drivers/net/fec_mpc52xx_phy.c | 4 ++-- drivers/net/fs_enet/fs_enet-main.c | 8 ++++---- drivers/net/fs_enet/mac-fcc.c | 8 ++++---- drivers/net/fs_enet/mac-fec.c | 4 ++-- drivers/net/fs_enet/mac-scc.c | 6 +++--- drivers/net/fs_enet/mii-fec.c | 6 +++--- drivers/net/fsl_pq_mdio.c | 2 +- drivers/net/gianfar.c | 6 +++--- drivers/net/greth.c | 3 ++- drivers/net/ibm_newemac/core.c | 13 +++++++------ drivers/net/ibm_newemac/debug.c | 9 +++++---- drivers/net/ibm_newemac/debug.h | 4 ++-- drivers/net/ibm_newemac/mal.c | 28 +++++++++++++-------------- drivers/net/ibm_newemac/rgmii.c | 12 ++++++------ drivers/net/ibm_newemac/tah.c | 7 ++++--- drivers/net/ibm_newemac/zmii.c | 9 +++++---- drivers/net/ll_temac_main.c | 10 +++++----- drivers/net/myri_sbus.c | 2 +- drivers/net/niu.c | 10 +++++----- drivers/net/phy/mdio-gpio.c | 6 +++--- drivers/net/sunbmac.c | 6 +++--- drivers/net/sunhme.c | 8 ++++---- drivers/net/sunlance.c | 6 +++--- drivers/net/sunqe.c | 6 +++--- drivers/net/ucc_geth.c | 2 +- drivers/net/xilinx_emaclite.c | 10 +++++----- 29 files changed, 115 insertions(+), 110 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c index 9dd076a626a5..dc5f20cdf93c 100644 --- a/drivers/net/can/sja1000/sja1000_of_platform.c +++ b/drivers/net/can/sja1000/sja1000_of_platform.c @@ -72,7 +72,7 @@ static int __devexit sja1000_ofp_remove(struct of_device *ofdev) { struct net_device *dev = dev_get_drvdata(&ofdev->dev); struct sja1000_priv *priv = netdev_priv(dev); - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct resource res; dev_set_drvdata(&ofdev->dev, NULL); @@ -91,7 +91,7 @@ static int __devexit sja1000_ofp_remove(struct of_device *ofdev) static int __devinit sja1000_ofp_probe(struct of_device *ofdev, const struct of_device_id *id) { - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct net_device *dev; struct sja1000_priv *priv; struct resource res; diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 809ccc9ff09c..59dac232006c 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -3035,7 +3035,7 @@ static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, static void __devinit logical_port_release(struct device *dev) { struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); - of_node_put(port->ofdev.node); + of_node_put(port->ofdev.dev.of_node); } static struct device *ehea_register_port(struct ehea_port *port, @@ -3043,7 +3043,7 @@ static struct device *ehea_register_port(struct ehea_port *port, { int ret; - port->ofdev.node = of_node_get(dn); + port->ofdev.dev.of_node = of_node_get(dn); port->ofdev.dev.parent = &port->adapter->ofdev->dev; port->ofdev.dev.bus = &ibmebus_bus_type; @@ -3210,7 +3210,7 @@ static int ehea_setup_ports(struct ehea_adapter *adapter) const u32 *dn_log_port_id; int i = 0; - lhea_dn = adapter->ofdev->node; + lhea_dn = adapter->ofdev->dev.of_node; while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", @@ -3249,7 +3249,7 @@ static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, struct device_node *eth_dn = NULL; const u32 *dn_log_port_id; - lhea_dn = adapter->ofdev->node; + lhea_dn = adapter->ofdev->dev.of_node; while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", @@ -3379,7 +3379,7 @@ static int __devinit ehea_probe_adapter(struct of_device *dev, const u64 *adapter_handle; int ret; - if (!dev || !dev->node) { + if (!dev || !dev->dev.of_node) { ehea_error("Invalid ibmebus device probed"); return -EINVAL; } @@ -3395,14 +3395,14 @@ static int __devinit ehea_probe_adapter(struct of_device *dev, adapter->ofdev = dev; - adapter_handle = of_get_property(dev->node, "ibm,hea-handle", + adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle", NULL); if (adapter_handle) adapter->handle = *adapter_handle; if (!adapter->handle) { dev_err(&dev->dev, "failed getting handle for adapter" - " '%s'\n", dev->node->full_name); + " '%s'\n", dev->dev.of_node->full_name); ret = -ENODEV; goto out_free_ad; } diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index 4a43e56b7394..3342056f8aac 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -873,7 +873,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match) priv->ndev = ndev; /* Reserve FEC control zone */ - rv = of_address_to_resource(op->node, 0, &mem); + rv = of_address_to_resource(op->dev.of_node, 0, &mem); if (rv) { printk(KERN_ERR DRIVER_NAME ": " "Error while parsing device node resource\n" ); @@ -921,7 +921,7 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match) /* Get the IRQ we need one by one */ /* Control */ - ndev->irq = irq_of_parse_and_map(op->node, 0); + ndev->irq = irq_of_parse_and_map(op->dev.of_node, 0); /* RX */ priv->r_irq = bcom_get_task_irq(priv->rx_dmatsk); @@ -944,20 +944,20 @@ mpc52xx_fec_probe(struct of_device *op, const struct of_device_id *match) /* Start with safe defaults for link connection */ priv->speed = 100; priv->duplex = DUPLEX_HALF; - priv->mdio_speed = ((mpc5xxx_get_bus_frequency(op->node) >> 20) / 5) << 1; + priv->mdio_speed = ((mpc5xxx_get_bus_frequency(op->dev.of_node) >> 20) / 5) << 1; /* The current speed preconfigures the speed of the MII link */ - prop = of_get_property(op->node, "current-speed", &prop_size); + prop = of_get_property(op->dev.of_node, "current-speed", &prop_size); if (prop && (prop_size >= sizeof(u32) * 2)) { priv->speed = prop[0]; priv->duplex = prop[1] ? DUPLEX_FULL : DUPLEX_HALF; } /* If there is a phy handle, then get the PHY node */ - priv->phy_node = of_parse_phandle(op->node, "phy-handle", 0); + priv->phy_node = of_parse_phandle(op->dev.of_node, "phy-handle", 0); /* the 7-wire property means don't use MII mode */ - if (of_find_property(op->node, "fsl,7-wire-mode", NULL)) { + if (of_find_property(op->dev.of_node, "fsl,7-wire-mode", NULL)) { priv->seven_wire_mode = 1; dev_info(&ndev->dev, "using 7-wire PHY mode\n"); } diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c index 7658a082e390..0d099e5a652d 100644 --- a/drivers/net/fec_mpc52xx_phy.c +++ b/drivers/net/fec_mpc52xx_phy.c @@ -66,7 +66,7 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, const struct of_device_id *match) { struct device *dev = &of->dev; - struct device_node *np = of->node; + struct device_node *np = of->dev.of_node; struct mii_bus *bus; struct mpc52xx_fec_mdio_priv *priv; struct resource res = {}; @@ -107,7 +107,7 @@ static int mpc52xx_fec_mdio_probe(struct of_device *of, /* set MII speed */ out_be32(&priv->regs->mii_speed, - ((mpc5xxx_get_bus_frequency(of->node) >> 20) / 5) << 1); + ((mpc5xxx_get_bus_frequency(of->dev.of_node) >> 20) / 5) << 1); err = of_mdiobus_register(bus, np); if (err) diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index 0770e2f6da6b..caeb88b67bc6 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -1015,7 +1015,7 @@ static int __devinit fs_enet_probe(struct of_device *ofdev, return -ENOMEM; if (!IS_FEC(match)) { - data = of_get_property(ofdev->node, "fsl,cpm-command", &len); + data = of_get_property(ofdev->dev.of_node, "fsl,cpm-command", &len); if (!data || len != 4) goto out_free_fpi; @@ -1027,8 +1027,8 @@ static int __devinit fs_enet_probe(struct of_device *ofdev, fpi->rx_copybreak = 240; fpi->use_napi = 1; fpi->napi_weight = 17; - fpi->phy_node = of_parse_phandle(ofdev->node, "phy-handle", 0); - if ((!fpi->phy_node) && (!of_get_property(ofdev->node, "fixed-link", + fpi->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0); + if ((!fpi->phy_node) && (!of_get_property(ofdev->dev.of_node, "fixed-link", NULL))) goto out_free_fpi; @@ -1061,7 +1061,7 @@ static int __devinit fs_enet_probe(struct of_device *ofdev, spin_lock_init(&fep->lock); spin_lock_init(&fep->tx_lock); - mac_addr = of_get_mac_address(ofdev->node); + mac_addr = of_get_mac_address(ofdev->dev.of_node); if (mac_addr) memcpy(ndev->dev_addr, mac_addr, 6); diff --git a/drivers/net/fs_enet/mac-fcc.c b/drivers/net/fs_enet/mac-fcc.c index 0a973e71876b..9d4f272137d6 100644 --- a/drivers/net/fs_enet/mac-fcc.c +++ b/drivers/net/fs_enet/mac-fcc.c @@ -88,19 +88,19 @@ static int do_pd_setup(struct fs_enet_private *fep) struct fs_platform_info *fpi = fep->fpi; int ret = -EINVAL; - fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL); + fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL); if (fep->interrupt == NO_IRQ) goto out; - fep->fcc.fccp = of_iomap(ofdev->node, 0); + fep->fcc.fccp = of_iomap(ofdev->dev.of_node, 0); if (!fep->fcc.fccp) goto out; - fep->fcc.ep = of_iomap(ofdev->node, 1); + fep->fcc.ep = of_iomap(ofdev->dev.of_node, 1); if (!fep->fcc.ep) goto out_fccp; - fep->fcc.fcccp = of_iomap(ofdev->node, 2); + fep->fcc.fcccp = of_iomap(ofdev->dev.of_node, 2); if (!fep->fcc.fcccp) goto out_ep; diff --git a/drivers/net/fs_enet/mac-fec.c b/drivers/net/fs_enet/mac-fec.c index ec81f50d5919..bd7a6e7064bb 100644 --- a/drivers/net/fs_enet/mac-fec.c +++ b/drivers/net/fs_enet/mac-fec.c @@ -98,11 +98,11 @@ static int do_pd_setup(struct fs_enet_private *fep) { struct of_device *ofdev = to_of_device(fep->dev); - fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL); + fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL); if (fep->interrupt == NO_IRQ) return -EINVAL; - fep->fec.fecp = of_iomap(ofdev->node, 0); + fep->fec.fecp = of_iomap(ofdev->dev.of_node, 0); if (!fep->fcc.fccp) return -EINVAL; diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c index 34d3da751eb4..49a4d8c60168 100644 --- a/drivers/net/fs_enet/mac-scc.c +++ b/drivers/net/fs_enet/mac-scc.c @@ -98,15 +98,15 @@ static int do_pd_setup(struct fs_enet_private *fep) { struct of_device *ofdev = to_of_device(fep->dev); - fep->interrupt = of_irq_to_resource(ofdev->node, 0, NULL); + fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL); if (fep->interrupt == NO_IRQ) return -EINVAL; - fep->scc.sccp = of_iomap(ofdev->node, 0); + fep->scc.sccp = of_iomap(ofdev->dev.of_node, 0); if (!fep->scc.sccp) return -EINVAL; - fep->scc.ep = of_iomap(ofdev->node, 1); + fep->scc.ep = of_iomap(ofdev->dev.of_node, 1); if (!fep->scc.ep) { iounmap(fep->scc.sccp); return -EINVAL; diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index 5944b65082cb..dc862e779c1f 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -124,7 +124,7 @@ static int __devinit fs_enet_mdio_probe(struct of_device *ofdev, new_bus->write = &fs_enet_fec_mii_write; new_bus->reset = &fs_enet_fec_mii_reset; - ret = of_address_to_resource(ofdev->node, 0, &res); + ret = of_address_to_resource(ofdev->dev.of_node, 0, &res); if (ret) goto out_res; @@ -135,7 +135,7 @@ static int __devinit fs_enet_mdio_probe(struct of_device *ofdev, goto out_fec; if (get_bus_freq) { - clock = get_bus_freq(ofdev->node); + clock = get_bus_freq(ofdev->dev.of_node); if (!clock) { /* Use maximum divider if clock is unknown */ dev_warn(&ofdev->dev, "could not determine IPS clock\n"); @@ -172,7 +172,7 @@ static int __devinit fs_enet_mdio_probe(struct of_device *ofdev, new_bus->parent = &ofdev->dev; dev_set_drvdata(&ofdev->dev, new_bus); - ret = of_mdiobus_register(new_bus, ofdev->node); + ret = of_mdiobus_register(new_bus, ofdev->dev.of_node); if (ret) goto out_free_irqs; diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c index d5160edf2fcf..72489a213bf7 100644 --- a/drivers/net/fsl_pq_mdio.c +++ b/drivers/net/fsl_pq_mdio.c @@ -271,7 +271,7 @@ static int get_ucc_id_for_range(u64 start, u64 end, u32 *ucc_id) static int fsl_pq_mdio_probe(struct of_device *ofdev, const struct of_device_id *match) { - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct device_node *tbi; struct fsl_pq_mdio_priv *priv; struct fsl_pq_mdio __iomem *regs = NULL; diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 080d1cea5b26..b71bba91064c 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -603,7 +603,7 @@ static int gfar_of_init(struct of_device *ofdev, struct net_device **pdev) int err = 0, i; struct net_device *dev = NULL; struct gfar_private *priv = NULL; - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct device_node *child = NULL; const u32 *stash; const u32 *stash_len; @@ -641,7 +641,7 @@ static int gfar_of_init(struct of_device *ofdev, struct net_device **pdev) return -ENOMEM; priv = netdev_priv(dev); - priv->node = ofdev->node; + priv->node = ofdev->dev.of_node; priv->ndev = dev; dev->num_tx_queues = num_tx_qs; @@ -888,7 +888,7 @@ static int gfar_probe(struct of_device *ofdev, priv = netdev_priv(dev); priv->ndev = dev; priv->ofdev = ofdev; - priv->node = ofdev->node; + priv->node = ofdev->dev.of_node; SET_NETDEV_DEV(dev, &ofdev->dev); spin_lock_init(&priv->bflock); diff --git a/drivers/net/greth.c b/drivers/net/greth.c index 3a90430de918..61fd54d35f63 100644 --- a/drivers/net/greth.c +++ b/drivers/net/greth.c @@ -1500,7 +1500,8 @@ static int __devinit greth_of_probe(struct of_device *ofdev, const struct of_dev if (i == 6) { const unsigned char *addr; int len; - addr = of_get_property(ofdev->node, "local-mac-address", &len); + addr = of_get_property(ofdev->dev.of_node, "local-mac-address", + &len); if (addr != NULL && len == 6) { for (i = 0; i < 6; i++) macaddr[i] = (unsigned int) addr[i]; diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index dd873cc41c2b..cda2ba891344 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -136,7 +136,8 @@ static inline void emac_report_timeout_error(struct emac_instance *dev, EMAC_FTR_440EP_PHY_CLK_FIX)) DBG(dev, "%s" NL, error); else if (net_ratelimit()) - printk(KERN_ERR "%s: %s\n", dev->ofdev->node->full_name, error); + printk(KERN_ERR "%s: %s\n", dev->ofdev->dev.of_node->full_name, + error); } /* EMAC PHY clock workaround: @@ -2185,7 +2186,7 @@ static void emac_ethtool_get_drvinfo(struct net_device *ndev, strcpy(info->version, DRV_VERSION); info->fw_version[0] = '\0'; sprintf(info->bus_info, "PPC 4xx EMAC-%d %s", - dev->cell_index, dev->ofdev->node->full_name); + dev->cell_index, dev->ofdev->dev.of_node->full_name); info->regdump_len = emac_ethtool_get_regs_len(ndev); } @@ -2379,7 +2380,7 @@ static int __devinit emac_read_uint_prop(struct device_node *np, const char *nam static int __devinit emac_init_phy(struct emac_instance *dev) { - struct device_node *np = dev->ofdev->node; + struct device_node *np = dev->ofdev->dev.of_node; struct net_device *ndev = dev->ndev; u32 phy_map, adv; int i; @@ -2514,7 +2515,7 @@ static int __devinit emac_init_phy(struct emac_instance *dev) static int __devinit emac_init_config(struct emac_instance *dev) { - struct device_node *np = dev->ofdev->node; + struct device_node *np = dev->ofdev->dev.of_node; const void *p; unsigned int plen; const char *pm, *phy_modes[] = { @@ -2723,7 +2724,7 @@ static int __devinit emac_probe(struct of_device *ofdev, { struct net_device *ndev; struct emac_instance *dev; - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct device_node **blist = NULL; int err, i; @@ -2810,7 +2811,7 @@ static int __devinit emac_probe(struct of_device *ofdev, err = mal_register_commac(dev->mal, &dev->commac); if (err) { printk(KERN_ERR "%s: failed to register with mal %s!\n", - np->full_name, dev->mal_dev->node->full_name); + np->full_name, dev->mal_dev->dev.of_node->full_name); goto err_rel_deps; } dev->rx_skb_size = emac_rx_skb_size(ndev->mtu); diff --git a/drivers/net/ibm_newemac/debug.c b/drivers/net/ibm_newemac/debug.c index 775c850a425a..3995fafc1e08 100644 --- a/drivers/net/ibm_newemac/debug.c +++ b/drivers/net/ibm_newemac/debug.c @@ -33,7 +33,7 @@ static void emac_desc_dump(struct emac_instance *p) int i; printk("** EMAC %s TX BDs **\n" " tx_cnt = %d tx_slot = %d ack_slot = %d\n", - p->ofdev->node->full_name, + p->ofdev->dev.of_node->full_name, p->tx_cnt, p->tx_slot, p->ack_slot); for (i = 0; i < NUM_TX_BUFF / 2; ++i) printk @@ -49,7 +49,7 @@ static void emac_desc_dump(struct emac_instance *p) printk("** EMAC %s RX BDs **\n" " rx_slot = %d flags = 0x%lx rx_skb_size = %d rx_sync_size = %d\n" " rx_sg_skb = 0x%p\n", - p->ofdev->node->full_name, + p->ofdev->dev.of_node->full_name, p->rx_slot, p->commac.flags, p->rx_skb_size, p->rx_sync_size, p->rx_sg_skb); for (i = 0; i < NUM_RX_BUFF / 2; ++i) @@ -77,7 +77,8 @@ static void emac_mac_dump(struct emac_instance *dev) "MR0 = 0x%08x MR1 = 0x%08x TMR0 = 0x%08x TMR1 = 0x%08x\n" "RMR = 0x%08x ISR = 0x%08x ISER = 0x%08x\n" "IAR = %04x%08x VTPID = 0x%04x VTCI = 0x%04x\n", - dev->ofdev->node->full_name, in_be32(&p->mr0), in_be32(&p->mr1), + dev->ofdev->dev.of_node->full_name, + in_be32(&p->mr0), in_be32(&p->mr1), in_be32(&p->tmr0), in_be32(&p->tmr1), in_be32(&p->rmr), in_be32(&p->isr), in_be32(&p->iser), in_be32(&p->iahr), in_be32(&p->ialr), in_be32(&p->vtpid), @@ -128,7 +129,7 @@ static void emac_mal_dump(struct mal_instance *mal) "CFG = 0x%08x ESR = 0x%08x IER = 0x%08x\n" "TX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n" "RX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n", - mal->ofdev->node->full_name, + mal->ofdev->dev.of_node->full_name, get_mal_dcrn(mal, MAL_CFG), get_mal_dcrn(mal, MAL_ESR), get_mal_dcrn(mal, MAL_IER), get_mal_dcrn(mal, MAL_TXCASR), get_mal_dcrn(mal, MAL_TXCARR), diff --git a/drivers/net/ibm_newemac/debug.h b/drivers/net/ibm_newemac/debug.h index b631842ec8d0..e596c77ccdf7 100644 --- a/drivers/net/ibm_newemac/debug.h +++ b/drivers/net/ibm_newemac/debug.h @@ -53,8 +53,8 @@ extern void emac_dbg_dump_all(void); #endif -#define EMAC_DBG(dev, name, fmt, arg...) \ - printk(KERN_DEBUG #name "%s: " fmt, dev->ofdev->node->full_name, ## arg) +#define EMAC_DBG(d, name, fmt, arg...) \ + printk(KERN_DEBUG #name "%s: " fmt, d->ofdev->dev.of_node->full_name, ## arg) #if DBG_LEVEL > 0 # define DBG(d,f,x...) EMAC_DBG(d, emac, f, ##x) diff --git a/drivers/net/ibm_newemac/mal.c b/drivers/net/ibm_newemac/mal.c index 5b3d94419fe6..aba17947e208 100644 --- a/drivers/net/ibm_newemac/mal.c +++ b/drivers/net/ibm_newemac/mal.c @@ -538,11 +538,11 @@ static int __devinit mal_probe(struct of_device *ofdev, } mal->index = index; mal->ofdev = ofdev; - mal->version = of_device_is_compatible(ofdev->node, "ibm,mcmal2") ? 2 : 1; + mal->version = of_device_is_compatible(ofdev->dev.of_node, "ibm,mcmal2") ? 2 : 1; MAL_DBG(mal, "probe" NL); - prop = of_get_property(ofdev->node, "num-tx-chans", NULL); + prop = of_get_property(ofdev->dev.of_node, "num-tx-chans", NULL); if (prop == NULL) { printk(KERN_ERR "mal%d: can't find MAL num-tx-chans property!\n", @@ -552,7 +552,7 @@ static int __devinit mal_probe(struct of_device *ofdev, } mal->num_tx_chans = prop[0]; - prop = of_get_property(ofdev->node, "num-rx-chans", NULL); + prop = of_get_property(ofdev->dev.of_node, "num-rx-chans", NULL); if (prop == NULL) { printk(KERN_ERR "mal%d: can't find MAL num-rx-chans property!\n", @@ -562,14 +562,14 @@ static int __devinit mal_probe(struct of_device *ofdev, } mal->num_rx_chans = prop[0]; - dcr_base = dcr_resource_start(ofdev->node, 0); + dcr_base = dcr_resource_start(ofdev->dev.of_node, 0); if (dcr_base == 0) { printk(KERN_ERR "mal%d: can't find DCR resource!\n", index); err = -ENODEV; goto fail; } - mal->dcr_host = dcr_map(ofdev->node, dcr_base, 0x100); + mal->dcr_host = dcr_map(ofdev->dev.of_node, dcr_base, 0x100); if (!DCR_MAP_OK(mal->dcr_host)) { printk(KERN_ERR "mal%d: failed to map DCRs !\n", index); @@ -577,28 +577,28 @@ static int __devinit mal_probe(struct of_device *ofdev, goto fail; } - if (of_device_is_compatible(ofdev->node, "ibm,mcmal-405ez")) { + if (of_device_is_compatible(ofdev->dev.of_node, "ibm,mcmal-405ez")) { #if defined(CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT) && \ defined(CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR) mal->features |= (MAL_FTR_CLEAR_ICINTSTAT | MAL_FTR_COMMON_ERR_INT); #else printk(KERN_ERR "%s: Support for 405EZ not enabled!\n", - ofdev->node->full_name); + ofdev->dev.of_node->full_name); err = -ENODEV; goto fail; #endif } - mal->txeob_irq = irq_of_parse_and_map(ofdev->node, 0); - mal->rxeob_irq = irq_of_parse_and_map(ofdev->node, 1); - mal->serr_irq = irq_of_parse_and_map(ofdev->node, 2); + mal->txeob_irq = irq_of_parse_and_map(ofdev->dev.of_node, 0); + mal->rxeob_irq = irq_of_parse_and_map(ofdev->dev.of_node, 1); + mal->serr_irq = irq_of_parse_and_map(ofdev->dev.of_node, 2); if (mal_has_feature(mal, MAL_FTR_COMMON_ERR_INT)) { mal->txde_irq = mal->rxde_irq = mal->serr_irq; } else { - mal->txde_irq = irq_of_parse_and_map(ofdev->node, 3); - mal->rxde_irq = irq_of_parse_and_map(ofdev->node, 4); + mal->txde_irq = irq_of_parse_and_map(ofdev->dev.of_node, 3); + mal->rxde_irq = irq_of_parse_and_map(ofdev->dev.of_node, 4); } if (mal->txeob_irq == NO_IRQ || mal->rxeob_irq == NO_IRQ || @@ -629,7 +629,7 @@ static int __devinit mal_probe(struct of_device *ofdev, /* Current Axon is not happy with priority being non-0, it can * deadlock, fix it up here */ - if (of_device_is_compatible(ofdev->node, "ibm,mcmal-axon")) + if (of_device_is_compatible(ofdev->dev.of_node, "ibm,mcmal-axon")) cfg &= ~(MAL2_CFG_RPP_10 | MAL2_CFG_WPP_10); /* Apply configuration */ @@ -701,7 +701,7 @@ static int __devinit mal_probe(struct of_device *ofdev, printk(KERN_INFO "MAL v%d %s, %d TX channels, %d RX channels\n", - mal->version, ofdev->node->full_name, + mal->version, ofdev->dev.of_node->full_name, mal->num_tx_chans, mal->num_rx_chans); /* Advertise this instance to the rest of the world */ diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c index 5b90d34c8455..6ab630a79e31 100644 --- a/drivers/net/ibm_newemac/rgmii.c +++ b/drivers/net/ibm_newemac/rgmii.c @@ -103,7 +103,7 @@ int __devinit rgmii_attach(struct of_device *ofdev, int input, int mode) /* Check if we need to attach to a RGMII */ if (input < 0 || !rgmii_valid_mode(mode)) { printk(KERN_ERR "%s: unsupported settings !\n", - ofdev->node->full_name); + ofdev->dev.of_node->full_name); return -ENODEV; } @@ -113,7 +113,7 @@ int __devinit rgmii_attach(struct of_device *ofdev, int input, int mode) out_be32(&p->fer, in_be32(&p->fer) | rgmii_mode_mask(mode, input)); printk(KERN_NOTICE "%s: input %d in %s mode\n", - ofdev->node->full_name, input, rgmii_mode_name(mode)); + ofdev->dev.of_node->full_name, input, rgmii_mode_name(mode)); ++dev->users; @@ -231,7 +231,7 @@ void *rgmii_dump_regs(struct of_device *ofdev, void *buf) static int __devinit rgmii_probe(struct of_device *ofdev, const struct of_device_id *match) { - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct rgmii_instance *dev; struct resource regs; int rc; @@ -264,11 +264,11 @@ static int __devinit rgmii_probe(struct of_device *ofdev, } /* Check for RGMII flags */ - if (of_get_property(ofdev->node, "has-mdio", NULL)) + if (of_get_property(ofdev->dev.of_node, "has-mdio", NULL)) dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO; /* CAB lacks the right properties, fix this up */ - if (of_device_is_compatible(ofdev->node, "ibm,rgmii-axon")) + if (of_device_is_compatible(ofdev->dev.of_node, "ibm,rgmii-axon")) dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO; DBG2(dev, " Boot FER = 0x%08x, SSR = 0x%08x\n", @@ -279,7 +279,7 @@ static int __devinit rgmii_probe(struct of_device *ofdev, printk(KERN_INFO "RGMII %s initialized with%s MDIO support\n", - ofdev->node->full_name, + ofdev->dev.of_node->full_name, (dev->flags & EMAC_RGMII_FLAG_HAS_MDIO) ? "" : "out"); wmb(); diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c index 30173a9fb557..4f64b00dd5e8 100644 --- a/drivers/net/ibm_newemac/tah.c +++ b/drivers/net/ibm_newemac/tah.c @@ -57,7 +57,8 @@ void tah_reset(struct of_device *ofdev) --n; if (unlikely(!n)) - printk(KERN_ERR "%s: reset timeout\n", ofdev->node->full_name); + printk(KERN_ERR "%s: reset timeout\n", + ofdev->dev.of_node->full_name); /* 10KB TAH TX FIFO accomodates the max MTU of 9000 */ out_be32(&p->mr, @@ -89,7 +90,7 @@ void *tah_dump_regs(struct of_device *ofdev, void *buf) static int __devinit tah_probe(struct of_device *ofdev, const struct of_device_id *match) { - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct tah_instance *dev; struct resource regs; int rc; @@ -127,7 +128,7 @@ static int __devinit tah_probe(struct of_device *ofdev, tah_reset(ofdev); printk(KERN_INFO - "TAH %s initialized\n", ofdev->node->full_name); + "TAH %s initialized\n", ofdev->dev.of_node->full_name); wmb(); return 0; diff --git a/drivers/net/ibm_newemac/zmii.c b/drivers/net/ibm_newemac/zmii.c index 1f038f808ab3..b4fa823ed201 100644 --- a/drivers/net/ibm_newemac/zmii.c +++ b/drivers/net/ibm_newemac/zmii.c @@ -121,13 +121,14 @@ int __devinit zmii_attach(struct of_device *ofdev, int input, int *mode) dev->mode = *mode; printk(KERN_NOTICE "%s: bridge in %s mode\n", - ofdev->node->full_name, zmii_mode_name(dev->mode)); + ofdev->dev.of_node->full_name, + zmii_mode_name(dev->mode)); } else { /* All inputs must use the same mode */ if (*mode != PHY_MODE_NA && *mode != dev->mode) { printk(KERN_ERR "%s: invalid mode %d specified for input %d\n", - ofdev->node->full_name, *mode, input); + ofdev->dev.of_node->full_name, *mode, input); mutex_unlock(&dev->lock); return -EINVAL; } @@ -233,7 +234,7 @@ void *zmii_dump_regs(struct of_device *ofdev, void *buf) static int __devinit zmii_probe(struct of_device *ofdev, const struct of_device_id *match) { - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct zmii_instance *dev; struct resource regs; int rc; @@ -273,7 +274,7 @@ static int __devinit zmii_probe(struct of_device *ofdev, out_be32(&dev->base->fer, 0); printk(KERN_INFO - "ZMII %s initialized\n", ofdev->node->full_name); + "ZMII %s initialized\n", ofdev->dev.of_node->full_name); wmb(); dev_set_drvdata(&ofdev->dev, dev); diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c index ba617e3cf1bb..9c7395c10e44 100644 --- a/drivers/net/ll_temac_main.c +++ b/drivers/net/ll_temac_main.c @@ -858,14 +858,14 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) mutex_init(&lp->indirect_mutex); /* map device registers */ - lp->regs = of_iomap(op->node, 0); + lp->regs = of_iomap(op->dev.of_node, 0); if (!lp->regs) { dev_err(&op->dev, "could not map temac regs.\n"); goto nodev; } /* Find the DMA node, map the DMA registers, and decode the DMA IRQs */ - np = of_parse_phandle(op->node, "llink-connected", 0); + np = of_parse_phandle(op->dev.of_node, "llink-connected", 0); if (!np) { dev_err(&op->dev, "could not find DMA node\n"); goto nodev; @@ -890,7 +890,7 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) of_node_put(np); /* Finished with the DMA node; drop the reference */ /* Retrieve the MAC address */ - addr = of_get_property(op->node, "local-mac-address", &size); + addr = of_get_property(op->dev.of_node, "local-mac-address", &size); if ((!addr) || (size != 6)) { dev_err(&op->dev, "could not find MAC address\n"); rc = -ENODEV; @@ -898,11 +898,11 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) } temac_set_mac_address(ndev, (void *)addr); - rc = temac_mdio_setup(lp, op->node); + rc = temac_mdio_setup(lp, op->dev.of_node); if (rc) dev_warn(&op->dev, "error registering MDIO bus\n"); - lp->phy_node = of_parse_phandle(op->node, "phy-handle", 0); + lp->phy_node = of_parse_phandle(op->dev.of_node, "phy-handle", 0); if (lp->phy_node) dev_dbg(lp->dev, "using PHY node %s (%p)\n", np->full_name, np); diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c index b72e749afdf1..e21439f1e775 100644 --- a/drivers/net/myri_sbus.c +++ b/drivers/net/myri_sbus.c @@ -928,7 +928,7 @@ static const struct net_device_ops myri_ops = { static int __devinit myri_sbus_probe(struct of_device *op, const struct of_device_id *match) { - struct device_node *dp = op->node; + struct device_node *dp = op->dev.of_node; static unsigned version_printed; struct net_device *dev; struct myri_eth *mp; diff --git a/drivers/net/niu.c b/drivers/net/niu.c index d5cd16bfc907..9c1604c04450 100644 --- a/drivers/net/niu.c +++ b/drivers/net/niu.c @@ -9094,7 +9094,7 @@ static int __devinit niu_n2_irq_init(struct niu *np, u8 *ldg_num_map) const u32 *int_prop; int i; - int_prop = of_get_property(op->node, "interrupts", NULL); + int_prop = of_get_property(op->dev.of_node, "interrupts", NULL); if (!int_prop) return -ENODEV; @@ -9245,7 +9245,7 @@ static int __devinit niu_get_of_props(struct niu *np) int prop_len; if (np->parent->plat_type == PLAT_TYPE_NIU) - dp = np->op->node; + dp = np->op->dev.of_node; else dp = pci_device_to_OF_node(np->pdev); @@ -10056,10 +10056,10 @@ static int __devinit niu_of_probe(struct of_device *op, niu_driver_version(); - reg = of_get_property(op->node, "reg", NULL); + reg = of_get_property(op->dev.of_node, "reg", NULL); if (!reg) { dev_err(&op->dev, "%s: No 'reg' property, aborting\n", - op->node->full_name); + op->dev.of_node->full_name); return -ENODEV; } @@ -10072,7 +10072,7 @@ static int __devinit niu_of_probe(struct of_device *op, np = netdev_priv(dev); memset(&parent_id, 0, sizeof(parent_id)); - parent_id.of = of_get_parent(op->node); + parent_id.of = of_get_parent(op->dev.of_node); np->parent = niu_get_parent(np, &parent_id, PLAT_TYPE_NIU); diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index 35897134a5dd..641973ca2417 100644 --- a/drivers/net/phy/mdio-gpio.c +++ b/drivers/net/phy/mdio-gpio.c @@ -199,12 +199,12 @@ static int __devinit mdio_ofgpio_probe(struct of_device *ofdev, if (!pdata) return -ENOMEM; - ret = of_get_gpio(ofdev->node, 0); + ret = of_get_gpio(ofdev->dev.of_node, 0); if (ret < 0) goto out_free; pdata->mdc = ret; - ret = of_get_gpio(ofdev->node, 1); + ret = of_get_gpio(ofdev->dev.of_node, 1); if (ret < 0) goto out_free; pdata->mdio = ret; @@ -213,7 +213,7 @@ static int __devinit mdio_ofgpio_probe(struct of_device *ofdev, if (!new_bus) goto out_free; - ret = of_mdiobus_register(new_bus, ofdev->node); + ret = of_mdiobus_register(new_bus, ofdev->dev.of_node); if (ret) mdio_gpio_bus_deinit(&ofdev->dev); diff --git a/drivers/net/sunbmac.c b/drivers/net/sunbmac.c index ed7865a0b5b2..bd286ec5abd9 100644 --- a/drivers/net/sunbmac.c +++ b/drivers/net/sunbmac.c @@ -1133,8 +1133,8 @@ static int __devinit bigmac_ether_init(struct of_device *op, goto fail_and_cleanup; /* Get supported SBUS burst sizes. */ - bsizes = of_getintprop_default(qec_op->node, "burst-sizes", 0xff); - bsizes_more = of_getintprop_default(qec_op->node, "burst-sizes", 0xff); + bsizes = of_getintprop_default(qec_op->dev.of_node, "burst-sizes", 0xff); + bsizes_more = of_getintprop_default(qec_op->dev.of_node, "burst-sizes", 0xff); bsizes &= 0xff; if (bsizes_more != 0xff) @@ -1186,7 +1186,7 @@ static int __devinit bigmac_ether_init(struct of_device *op, } /* Get the board revision of this BigMAC. */ - bp->board_rev = of_getintprop_default(bp->bigmac_op->node, + bp->board_rev = of_getintprop_default(bp->bigmac_op->dev.of_node, "board-version", 1); /* Init auto-negotiation timer state. */ diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index b17dbb11bd67..c6463f71c916 100644 --- a/drivers/net/sunhme.c +++ b/drivers/net/sunhme.c @@ -2483,7 +2483,7 @@ static void hme_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info else { const struct linux_prom_registers *regs; struct of_device *op = hp->happy_dev; - regs = of_get_property(op->node, "regs", NULL); + regs = of_get_property(op->dev.of_node, "regs", NULL); if (regs) sprintf(info->bus_info, "SBUS:%d", regs->which_io); @@ -2643,14 +2643,14 @@ static const struct net_device_ops hme_netdev_ops = { #ifdef CONFIG_SBUS static int __devinit happy_meal_sbus_probe_one(struct of_device *op, int is_qfe) { - struct device_node *dp = op->node, *sbus_dp; + struct device_node *dp = op->dev.of_node, *sbus_dp; struct quattro *qp = NULL; struct happy_meal *hp; struct net_device *dev; int i, qfe_slot = -1; int err = -ENODEV; - sbus_dp = to_of_device(op->dev.parent)->node; + sbus_dp = to_of_device(op->dev.parent)->dev.of_node; /* We can match PCI devices too, do not accept those here. */ if (strcmp(sbus_dp->name, "sbus")) @@ -3241,7 +3241,7 @@ static void happy_meal_pci_exit(void) #ifdef CONFIG_SBUS static int __devinit hme_sbus_probe(struct of_device *op, const struct of_device_id *match) { - struct device_node *dp = op->node; + struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); int is_qfe = (match->data != NULL); diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c index 0c21653ff9f9..28afc86e0694 100644 --- a/drivers/net/sunlance.c +++ b/drivers/net/sunlance.c @@ -1324,7 +1324,7 @@ static int __devinit sparc_lance_probe_one(struct of_device *op, struct of_device *ledma, struct of_device *lebuffer) { - struct device_node *dp = op->node; + struct device_node *dp = op->dev.of_node; static unsigned version_printed; struct lance_private *lp; struct net_device *dev; @@ -1411,7 +1411,7 @@ static int __devinit sparc_lance_probe_one(struct of_device *op, lp->burst_sizes = 0; if (lp->ledma) { - struct device_node *ledma_dp = ledma->node; + struct device_node *ledma_dp = ledma->dev.of_node; struct device_node *sbus_dp; unsigned int sbmask; const char *prop; @@ -1507,7 +1507,7 @@ fail: static int __devinit sunlance_sbus_probe(struct of_device *op, const struct of_device_id *match) { struct of_device *parent = to_of_device(op->dev.parent); - struct device_node *parent_dp = parent->node; + struct device_node *parent_dp = parent->dev.of_node; int err; if (!strcmp(parent_dp->name, "ledma")) { diff --git a/drivers/net/sunqe.c b/drivers/net/sunqe.c index be637dce944c..9864f4fa69d5 100644 --- a/drivers/net/sunqe.c +++ b/drivers/net/sunqe.c @@ -696,7 +696,7 @@ static void qe_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) strcpy(info->version, "3.0"); op = qep->op; - regs = of_get_property(op->node, "reg", NULL); + regs = of_get_property(op->dev.of_node, "reg", NULL); if (regs) sprintf(info->bus_info, "SBUS:%d", regs->which_io); @@ -800,7 +800,7 @@ static struct sunqec * __devinit get_qec(struct of_device *child) if (qec_global_reset(qecp->gregs)) goto fail; - qecp->qec_bursts = qec_get_burst(op->node); + qecp->qec_bursts = qec_get_burst(op->dev.of_node); qec_init_once(qecp, op); @@ -858,7 +858,7 @@ static int __devinit qec_ether_init(struct of_device *op) res = -ENODEV; - i = of_getintprop_default(op->node, "channel#", -1); + i = of_getintprop_default(op->dev.of_node, "channel#", -1); if (i == -1) goto fail; qe->channel = i; diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 1b0aef37e495..88ebfc976735 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3721,7 +3721,7 @@ static const struct net_device_ops ucc_geth_netdev_ops = { static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *match) { struct device *device = &ofdev->dev; - struct device_node *np = ofdev->node; + struct device_node *np = ofdev->dev.of_node; struct net_device *dev = NULL; struct ucc_geth_private *ugeth = NULL; struct ucc_geth_info *ug_info; diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c index 1e783ccc306e..3dd2416db540 100644 --- a/drivers/net/xilinx_emaclite.c +++ b/drivers/net/xilinx_emaclite.c @@ -1090,7 +1090,7 @@ static void xemaclite_remove_ndev(struct net_device *ndev) */ static bool get_bool(struct of_device *ofdev, const char *s) { - u32 *p = (u32 *)of_get_property(ofdev->node, s, NULL); + u32 *p = (u32 *)of_get_property(ofdev->dev.of_node, s, NULL); if (p) { return (bool)*p; @@ -1132,14 +1132,14 @@ static int __devinit xemaclite_of_probe(struct of_device *ofdev, dev_info(dev, "Device Tree Probing\n"); /* Get iospace for the device */ - rc = of_address_to_resource(ofdev->node, 0, &r_mem); + rc = of_address_to_resource(ofdev->dev.of_node, 0, &r_mem); if (rc) { dev_err(dev, "invalid address\n"); return rc; } /* Get IRQ for the device */ - rc = of_irq_to_resource(ofdev->node, 0, &r_irq); + rc = of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq); if (rc == NO_IRQ) { dev_err(dev, "no IRQ found\n"); return rc; @@ -1184,7 +1184,7 @@ static int __devinit xemaclite_of_probe(struct of_device *ofdev, lp->next_rx_buf_to_use = 0x0; lp->tx_ping_pong = get_bool(ofdev, "xlnx,tx-ping-pong"); lp->rx_ping_pong = get_bool(ofdev, "xlnx,rx-ping-pong"); - mac_address = of_get_mac_address(ofdev->node); + mac_address = of_get_mac_address(ofdev->dev.of_node); if (mac_address) /* Set the MAC address. */ @@ -1199,7 +1199,7 @@ static int __devinit xemaclite_of_probe(struct of_device *ofdev, /* Set the MAC address in the EmacLite device */ xemaclite_update_address(lp, ndev->dev_addr); - lp->phy_node = of_parse_phandle(ofdev->node, "phy-handle", 0); + lp->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0); rc = xemaclite_mdio_setup(lp, &ofdev->dev); if (rc) dev_warn(&ofdev->dev, "error registering MDIO bus\n"); -- cgit v1.2.2 From 3a24934f065d23145f1c9c70da9f630c7a37795f Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Thu, 20 May 2010 12:27:58 -0700 Subject: wimax/i2400m: fix bad race condition check in RX path The i2400m->rx_roq data structure is protected against race conditions with a reference count (i2400m->rx_roq_refcount); the pointer can be read-referenced under the i2400m->rx_lock spinlock. The code in i2400m_rx_edata() wasn't properly following access protocol, performing an invalid check on i2400m->rx_roq (which is cleared to NULL when the refcount drops to zero). As such, it was missing to detect when the data structure is no longer valid and oopsing with a NULL pointer dereference. This commit fixes said check by verifying, under the rx_lock spinlock, that i2400m->rx_roq is non-NULL and then increasing the reference count before dropping the spinlock. Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/rx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c index c835ae8b89ce..6cd12d64fc7a 100644 --- a/drivers/net/wimax/i2400m/rx.c +++ b/drivers/net/wimax/i2400m/rx.c @@ -1033,12 +1033,12 @@ void i2400m_rx_edata(struct i2400m *i2400m, struct sk_buff *skb_rx, ro_sn = (reorder >> I2400M_RO_SN_SHIFT) & I2400M_RO_SN; spin_lock_irqsave(&i2400m->rx_lock, flags); - roq = &i2400m->rx_roq[ro_cin]; - if (roq == NULL) { + if (i2400m->rx_roq == NULL) { kfree_skb(skb); /* rx_roq is already destroyed */ spin_unlock_irqrestore(&i2400m->rx_lock, flags); goto error; } + roq = &i2400m->rx_roq[ro_cin]; kref_get(&i2400m->rx_roq_refcount); spin_unlock_irqrestore(&i2400m->rx_lock, flags); -- cgit v1.2.2 From c0dc72bad9cf21071f5e4005de46f7c8b67a138a Mon Sep 17 00:00:00 2001 From: Sebastien Dugue Date: Thu, 20 May 2010 15:58:22 -0700 Subject: mlx4_core: Fix possible chunk sg list overflow in mlx4_alloc_icm() If the number of sg entries in the ICM chunk reaches MLX4_ICM_CHUNK_LEN, we must set chunk to NULL even for coherent mappings so that the next time through the loop will allocate another chunk. Otherwise we'll overflow the sg list the next time through the loop. This will lead to memory corruption if this case is hit. mthca does not have this bug. Signed-off-by: Sebastien Dugue Cc: Signed-off-by: Roland Dreier --- drivers/net/mlx4/icm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/mlx4/icm.c b/drivers/net/mlx4/icm.c index 57288ca1395f..ef62f1749b8a 100644 --- a/drivers/net/mlx4/icm.c +++ b/drivers/net/mlx4/icm.c @@ -175,9 +175,10 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, if (chunk->nsg <= 0) goto fail; + } + if (chunk->npages == MLX4_ICM_CHUNK_LEN) chunk = NULL; - } npages -= 1 << cur_order; } else { -- cgit v1.2.2 From c050def076bfbc4513ee961c77fde6ba3d401158 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Thu, 20 May 2010 15:58:22 -0700 Subject: mlx4_core: Clean up mlx4_alloc_icm() a bit Handle the allocation error case first, so that we don't have further nested if for handling the common case of success. Signed-off-by: Roland Dreier --- drivers/net/mlx4/icm.c | 39 ++++++++++++++++++++------------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/mlx4/icm.c b/drivers/net/mlx4/icm.c index ef62f1749b8a..b07e4dee80aa 100644 --- a/drivers/net/mlx4/icm.c +++ b/drivers/net/mlx4/icm.c @@ -163,29 +163,30 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, ret = mlx4_alloc_icm_pages(&chunk->mem[chunk->npages], cur_order, gfp_mask); - if (!ret) { - ++chunk->npages; - - if (coherent) - ++chunk->nsg; - else if (chunk->npages == MLX4_ICM_CHUNK_LEN) { - chunk->nsg = pci_map_sg(dev->pdev, chunk->mem, - chunk->npages, - PCI_DMA_BIDIRECTIONAL); - - if (chunk->nsg <= 0) - goto fail; - } + if (ret) { + if (--cur_order < 0) + goto fail; + else + continue; + } - if (chunk->npages == MLX4_ICM_CHUNK_LEN) - chunk = NULL; + ++chunk->npages; - npages -= 1 << cur_order; - } else { - --cur_order; - if (cur_order < 0) + if (coherent) + ++chunk->nsg; + else if (chunk->npages == MLX4_ICM_CHUNK_LEN) { + chunk->nsg = pci_map_sg(dev->pdev, chunk->mem, + chunk->npages, + PCI_DMA_BIDIRECTIONAL); + + if (chunk->nsg <= 0) goto fail; } + + if (chunk->npages == MLX4_ICM_CHUNK_LEN) + chunk = NULL; + + npages -= 1 << cur_order; } if (!coherent && chunk) { -- cgit v1.2.2 From 119fc60a2d20b63439fdae99f0c7022d3dd99def Mon Sep 17 00:00:00 2001 From: Mallikarjuna R Chilakala Date: Thu, 20 May 2010 23:07:06 -0700 Subject: ixgbe:add support for a new 82599 10G Base-T device This adds support for a new copper device for 82599, device id 0x151c. This 82599 10GBase-T device uses the PHY's internal temperature sensor to guard against over-temp conditions. In this scenario the PHY will be put in a low power mode and link will no longer be able to transmit or receive any data. When this occurs, the over-temp interrupt is latched and driver logs this error message. A HW reset or power cycle is required to clear this status. Signed-off-by: Mallikarjuna R Chilakala Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe.h | 3 ++ drivers/net/ixgbe/ixgbe_82598.c | 1 + drivers/net/ixgbe/ixgbe_82599.c | 1 + drivers/net/ixgbe/ixgbe_main.c | 69 +++++++++++++++++++++++++++++++++++++++++ drivers/net/ixgbe/ixgbe_phy.c | 30 ++++++++++++++++++ drivers/net/ixgbe/ixgbe_phy.h | 3 ++ drivers/net/ixgbe/ixgbe_type.h | 4 +++ 7 files changed, 111 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index d0ea3d6dea95..ffae480587ae 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -360,6 +360,7 @@ struct ixgbe_adapter { u32 flags2; #define IXGBE_FLAG2_RSC_CAPABLE (u32)(1) #define IXGBE_FLAG2_RSC_ENABLED (u32)(1 << 1) +#define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2) /* default to trying for four seconds */ #define IXGBE_TRY_LINK_TIMEOUT (4 * HZ) @@ -407,6 +408,8 @@ struct ixgbe_adapter { u16 eeprom_version; int node; + struct work_struct check_overtemp_task; + u32 interrupt_event; /* SR-IOV */ DECLARE_BITMAP(active_vfs, IXGBE_MAX_VF_FUNCTIONS); diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c index f2b7ff44215b..9c02d6014cc4 100644 --- a/drivers/net/ixgbe/ixgbe_82598.c +++ b/drivers/net/ixgbe/ixgbe_82598.c @@ -1236,6 +1236,7 @@ static struct ixgbe_phy_operations phy_ops_82598 = { .setup_link = &ixgbe_setup_phy_link_generic, .setup_link_speed = &ixgbe_setup_phy_link_speed_generic, .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_82598, + .check_overtemp = &ixgbe_tn_check_overtemp, }; struct ixgbe_info ixgbe_82598_info = { diff --git a/drivers/net/ixgbe/ixgbe_82599.c b/drivers/net/ixgbe/ixgbe_82599.c index e9706eb8e4ff..a4e2901f2f08 100644 --- a/drivers/net/ixgbe/ixgbe_82599.c +++ b/drivers/net/ixgbe/ixgbe_82599.c @@ -2395,6 +2395,7 @@ static struct ixgbe_phy_operations phy_ops_82599 = { .write_i2c_byte = &ixgbe_write_i2c_byte_generic, .read_i2c_eeprom = &ixgbe_read_i2c_eeprom_generic, .write_i2c_eeprom = &ixgbe_write_i2c_eeprom_generic, + .check_overtemp = &ixgbe_tn_check_overtemp, }; struct ixgbe_info ixgbe_82599_info = { diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 9551cbb7bf01..d571d101de08 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -108,6 +108,8 @@ static DEFINE_PCI_DEVICE_TABLE(ixgbe_pci_tbl) = { board_82599 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_CX4), board_82599 }, + {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_T3_LOM), + board_82599 }, {PCI_VDEVICE(INTEL, IXGBE_DEV_ID_82599_COMBO_BACKPLANE), board_82599 }, @@ -1618,6 +1620,48 @@ static void ixgbe_set_itr_msix(struct ixgbe_q_vector *q_vector) } } +/** + * ixgbe_check_overtemp_task - worker thread to check over tempurature + * @work: pointer to work_struct containing our data + **/ +static void ixgbe_check_overtemp_task(struct work_struct *work) +{ + struct ixgbe_adapter *adapter = container_of(work, + struct ixgbe_adapter, + check_overtemp_task); + struct ixgbe_hw *hw = &adapter->hw; + u32 eicr = adapter->interrupt_event; + + if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { + switch (hw->device_id) { + case IXGBE_DEV_ID_82599_T3_LOM: { + u32 autoneg; + bool link_up = false; + + if (hw->mac.ops.check_link) + hw->mac.ops.check_link(hw, &autoneg, &link_up, false); + + if (((eicr & IXGBE_EICR_GPI_SDP0) && (!link_up)) || + (eicr & IXGBE_EICR_LSC)) + /* Check if this is due to overtemp */ + if (hw->phy.ops.check_overtemp(hw) == IXGBE_ERR_OVERTEMP) + break; + } + return; + default: + if (!(eicr & IXGBE_EICR_GPI_SDP0)) + return; + break; + } + DPRINTK(DRV, ERR, "Network adapter has been stopped because it " + "has over heated. Restart the computer. If the problem " + "persists, power off the system and replace the " + "adapter\n"); + /* write to clear the interrupt */ + IXGBE_WRITE_REG(hw, IXGBE_EICR, IXGBE_EICR_GPI_SDP0); + } +} + static void ixgbe_check_fan_failure(struct ixgbe_adapter *adapter, u32 eicr) { struct ixgbe_hw *hw = &adapter->hw; @@ -1689,6 +1733,10 @@ static irqreturn_t ixgbe_msix_lsc(int irq, void *data) if (hw->mac.type == ixgbe_mac_82599EB) { ixgbe_check_sfp_event(adapter, eicr); + adapter->interrupt_event = eicr; + if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && + ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) + schedule_work(&adapter->check_overtemp_task); /* Handle Flow Director Full threshold interrupt */ if (eicr & IXGBE_EICR_FLOW_DIR) { @@ -2190,6 +2238,8 @@ static inline void ixgbe_irq_enable(struct ixgbe_adapter *adapter) u32 mask; mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE); + if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) + mask |= IXGBE_EIMS_GPI_SDP0; if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) mask |= IXGBE_EIMS_GPI_SDP1; if (adapter->hw.mac.type == ixgbe_mac_82599EB) { @@ -2250,6 +2300,9 @@ static irqreturn_t ixgbe_intr(int irq, void *data) ixgbe_check_sfp_event(adapter, eicr); ixgbe_check_fan_failure(adapter, eicr); + if ((adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) && + ((eicr & IXGBE_EICR_GPI_SDP0) || (eicr & IXGBE_EICR_LSC))) + schedule_work(&adapter->check_overtemp_task); if (napi_schedule_prep(&(q_vector->napi))) { adapter->tx_ring[0]->total_packets = 0; @@ -3265,6 +3318,13 @@ static int ixgbe_up_complete(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_EIAM, IXGBE_EICS_RTX_QUEUE); } + /* Enable Thermal over heat sensor interrupt */ + if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) { + gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); + gpie |= IXGBE_SDP0_GPIEN; + IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie); + } + /* Enable fan failure interrupt if media type is copper */ if (adapter->flags & IXGBE_FLAG_FAN_FAIL_CAPABLE) { gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); @@ -3666,6 +3726,9 @@ void ixgbe_down(struct ixgbe_adapter *adapter) adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) cancel_work_sync(&adapter->fdir_reinit_task); + if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) + cancel_work_sync(&adapter->check_overtemp_task); + /* disable transmits in the hardware now that interrupts are off */ for (i = 0; i < adapter->num_tx_queues; i++) { j = adapter->tx_ring[i]->reg_idx; @@ -4645,6 +4708,8 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82599; adapter->flags2 |= IXGBE_FLAG2_RSC_CAPABLE; adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; + if (hw->device_id == IXGBE_DEV_ID_82599_T3_LOM) + adapter->flags2 |= IXGBE_FLAG2_TEMP_SENSOR_CAPABLE; if (dev->features & NETIF_F_NTUPLE) { /* Flow Director perfect filter enabled */ adapter->flags |= IXGBE_FLAG_FDIR_PERFECT_CAPABLE; @@ -6561,7 +6626,9 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, } /* reset_hw fills in the perm_addr as well */ + hw->phy.reset_if_overtemp = true; err = hw->mac.ops.reset_hw(hw); + hw->phy.reset_if_overtemp = false; if (err == IXGBE_ERR_SFP_NOT_PRESENT && hw->mac.type == ixgbe_mac_82598EB) { /* @@ -6730,6 +6797,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) INIT_WORK(&adapter->fdir_reinit_task, ixgbe_fdir_reinit_task); + if (adapter->flags2 & IXGBE_FLAG2_TEMP_SENSOR_CAPABLE) + INIT_WORK(&adapter->check_overtemp_task, ixgbe_check_overtemp_task); #ifdef CONFIG_IXGBE_DCA if (dca_add_requester(&pdev->dev) == 0) { adapter->flags |= IXGBE_FLAG_DCA_ENABLED; diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c index 22d21af14783..09e1911ff510 100644 --- a/drivers/net/ixgbe/ixgbe_phy.c +++ b/drivers/net/ixgbe/ixgbe_phy.c @@ -135,6 +135,11 @@ static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id) **/ s32 ixgbe_reset_phy_generic(struct ixgbe_hw *hw) { + /* Don't reset PHY if it's shut down due to overtemp. */ + if (!hw->phy.reset_if_overtemp && + (IXGBE_ERR_OVERTEMP == hw->phy.ops.check_overtemp(hw))) + return 0; + /* * Perform soft PHY reset to the PHY_XS. * This will cause a soft reset to the PHY @@ -1345,3 +1350,28 @@ s32 ixgbe_get_phy_firmware_version_tnx(struct ixgbe_hw *hw, return status; } +/** + * ixgbe_tn_check_overtemp - Checks if an overtemp occured. + * @hw: pointer to hardware structure + * + * Checks if the LASI temp alarm status was triggered due to overtemp + **/ +s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw) +{ + s32 status = 0; + u16 phy_data = 0; + + if (hw->device_id != IXGBE_DEV_ID_82599_T3_LOM) + goto out; + + /* Check that the LASI temp alarm status was triggered */ + hw->phy.ops.read_reg(hw, IXGBE_TN_LASI_STATUS_REG, + MDIO_MMD_PMAPMD, &phy_data); + + if (!(phy_data & IXGBE_TN_LASI_STATUS_TEMP_ALARM)) + goto out; + + status = IXGBE_ERR_OVERTEMP; +out: + return status; +} diff --git a/drivers/net/ixgbe/ixgbe_phy.h b/drivers/net/ixgbe/ixgbe_phy.h index c9c545941407..ef4ba834c593 100644 --- a/drivers/net/ixgbe/ixgbe_phy.h +++ b/drivers/net/ixgbe/ixgbe_phy.h @@ -80,6 +80,8 @@ #define IXGBE_I2C_T_SU_STO 4 #define IXGBE_I2C_T_BUF 5 +#define IXGBE_TN_LASI_STATUS_REG 0x9005 +#define IXGBE_TN_LASI_STATUS_TEMP_ALARM 0x0008 s32 ixgbe_init_phy_ops_generic(struct ixgbe_hw *hw); s32 ixgbe_identify_phy_generic(struct ixgbe_hw *hw); @@ -106,6 +108,7 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw); s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw, u16 *list_offset, u16 *data_offset); +s32 ixgbe_tn_check_overtemp(struct ixgbe_hw *hw); s32 ixgbe_read_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset, u8 dev_addr, u8 *data); s32 ixgbe_write_i2c_byte_generic(struct ixgbe_hw *hw, u8 byte_offset, diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h index 39b9be897439..2eb6e151016c 100644 --- a/drivers/net/ixgbe/ixgbe_type.h +++ b/drivers/net/ixgbe/ixgbe_type.h @@ -51,6 +51,7 @@ #define IXGBE_DEV_ID_82599_KX4 0x10F7 #define IXGBE_DEV_ID_82599_KX4_MEZZ 0x1514 #define IXGBE_DEV_ID_82599_KR 0x1517 +#define IXGBE_DEV_ID_82599_T3_LOM 0x151C #define IXGBE_DEV_ID_82599_CX4 0x10F9 #define IXGBE_DEV_ID_82599_SFP 0x10FB #define IXGBE_DEV_ID_82599_SFP_EM 0x1507 @@ -2470,6 +2471,7 @@ struct ixgbe_phy_operations { s32 (*write_i2c_byte)(struct ixgbe_hw *, u8, u8, u8); s32 (*read_i2c_eeprom)(struct ixgbe_hw *, u8 , u8 *); s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8); + s32 (*check_overtemp)(struct ixgbe_hw *); }; struct ixgbe_eeprom_info { @@ -2518,6 +2520,7 @@ struct ixgbe_phy_info { enum ixgbe_smart_speed smart_speed; bool smart_speed_active; bool multispeed_fiber; + bool reset_if_overtemp; }; #include "ixgbe_mbx.h" @@ -2605,6 +2608,7 @@ struct ixgbe_info { #define IXGBE_ERR_FDIR_REINIT_FAILED -23 #define IXGBE_ERR_EEPROM_VERSION -24 #define IXGBE_ERR_NO_SPACE -25 +#define IXGBE_ERR_OVERTEMP -26 #define IXGBE_NOT_IMPLEMENTED 0x7FFFFFFF #endif /* _IXGBE_TYPE_H_ */ -- cgit v1.2.2 From 0f0b405cd16f7aaff84a935984cae421897d725d Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Thu, 20 May 2010 04:00:59 +0000 Subject: sh_eth: Fix memleak in sh_mdio_release Allocated memory for IRQs should be freed when releasing the mii_bus Signed-off-by: Denis Kirjanov Acked-by: Nobuhiro Iwamatsu Signed-off-by: David S. Miller --- drivers/net/sh_eth.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/sh_eth.c b/drivers/net/sh_eth.c index 586ed0915a29..501a55ffce57 100644 --- a/drivers/net/sh_eth.c +++ b/drivers/net/sh_eth.c @@ -1294,6 +1294,9 @@ static int sh_mdio_release(struct net_device *ndev) /* remove mdio bus info from net_device */ dev_set_drvdata(&ndev->dev, NULL); + /* free interrupts memory */ + kfree(bus->irq); + /* free bitbang info */ free_mdio_bitbang(bus); -- cgit v1.2.2 From 1f01bfd202bc539bccd282befa2bbdb8d6ad80ee Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Wed, 19 May 2010 06:46:38 +0000 Subject: can: SJA1000 add missing spin_lock_init() As remarked by Sam Ravnborg the spin_lock variable, that has been introduced in commit 57c8a456640fa3ca777652f11f2db4179a3e66b6 ("can: Fix SJA1000 command register writes on SMP systems") has not been initialized properly. This patch adds the initialization to allow spinlock debugging. Signed-off-by: Oliver Hartkopp CC: Sam Ravnborg Signed-off-by: David S. Miller --- drivers/net/can/sja1000/sja1000.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 85f7cbfe8e5f..0a8de01d52f7 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -599,6 +599,8 @@ struct net_device *alloc_sja1000dev(int sizeof_priv) priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES | CAN_CTRLMODE_BERR_REPORTING; + spin_lock_init(&priv->cmdreg_lock); + if (sizeof_priv) priv->priv = (void *)priv + sizeof(struct sja1000_priv); -- cgit v1.2.2 From 073d5eab6fc85b6c278d507a5633b759a85dc878 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Thu, 13 May 2010 14:49:44 -0700 Subject: iwlwifi: fix internal scan race It is possible for internal scan to race against itself if the device is not returning the scan results from first requests. What happens in this case is the cleanup done during the abort of the first internal scan also cleans up part of the new scan, causing it to access memory it shouldn't. Here are details: * First internal scan is triggered and scan command sent to device. * After seven seconds there is no scan results so the watchdog timer triggers a scan abort. * The scan abort succeeds and a SCAN_COMPLETE_NOTIFICATION is received for failed scan. * During processing of SCAN_COMPLETE_NOTIFICATION we clear STATUS_SCANNING and queue the "scan_completed" work. ** At this time, since the problem that caused the internal scan in first place is still present, a new internal scan is triggered. The behavior at this point is a bit different between 2.6.34 and 2.6.35 since 2.6.35 has a lot of this synchronized. The rest of the race description will thus be generalized. ** As part of preparing for the scan "is_internal_short_scan" is set to true. * At this point the completion work for fist scan is run. As part of this there is some locking missing around the "is_internal_short_scan" variable and it is set to "false". ** Now the second scan runs and it considers itself a real (not internal0 scan and thus causes problems with wrong memory being accessed. The fix is twofold. * Since "is_internal_short_scan" should be protected by mutex, fix this in scan completion work so that changes to it can be serialized. * Do not queue a new internal scan if one is in progress. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=15824 Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-scan.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 107e173112f6..5d3f51ff2f0d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -376,6 +376,11 @@ void iwl_bg_start_internal_scan(struct work_struct *work) mutex_lock(&priv->mutex); + if (priv->is_internal_short_scan == true) { + IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n"); + goto unlock; + } + if (!iwl_is_ready_rf(priv)) { IWL_DEBUG_SCAN(priv, "not ready or exit pending\n"); goto unlock; @@ -497,17 +502,27 @@ void iwl_bg_scan_completed(struct work_struct *work) { struct iwl_priv *priv = container_of(work, struct iwl_priv, scan_completed); + bool internal = false; IWL_DEBUG_SCAN(priv, "SCAN complete scan\n"); cancel_delayed_work(&priv->scan_check); - if (!priv->is_internal_short_scan) - ieee80211_scan_completed(priv->hw, false); - else { + mutex_lock(&priv->mutex); + if (priv->is_internal_short_scan) { priv->is_internal_short_scan = false; IWL_DEBUG_SCAN(priv, "internal short scan completed\n"); + internal = true; } + mutex_unlock(&priv->mutex); + + /* + * Do not hold mutex here since this will cause mac80211 to call + * into driver again into functions that will attempt to take + * mutex. + */ + if (!internal) + ieee80211_scan_completed(priv->hw, false); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; -- cgit v1.2.2 From b9f2e39d4c2bcd8e94f73ae14450d7764f930a41 Mon Sep 17 00:00:00 2001 From: Juuso Oikarinen Date: Fri, 14 May 2010 10:46:24 +0300 Subject: wl1271: Fix RX data path frame lengths The current frame length used by the driver for RX frames is the SPI bus transfer length. This length has padding bytes, which do not belong to the WLAN frame. As there is no other length information in the WLAN frame except the skb length this problem caused for instance extra ESSID's to be listed at the end of scan results (IE id 0) with zero length. Fix the frame length by removing padding. Signed-off-by: Juuso Oikarinen Reviewed-by: Luciano Coelho Signed-off-by: Luciano Coelho Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1271_rx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.c b/drivers/net/wireless/wl12xx/wl1271_rx.c index 57f4bfd959c8..b98fb643fab0 100644 --- a/drivers/net/wireless/wl12xx/wl1271_rx.c +++ b/drivers/net/wireless/wl12xx/wl1271_rx.c @@ -113,6 +113,8 @@ static void wl1271_rx_handle_data(struct wl1271 *wl, u32 length) wl1271_debug(DEBUG_RX, "rx skb 0x%p: %d B %s", skb, skb->len, beacon ? "beacon" : ""); + skb_trim(skb, skb->len - desc->pad_len); + memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); ieee80211_rx_ni(wl->hw, skb); } -- cgit v1.2.2 From ab1d864431a557580945387477bcbcb9dc7f7135 Mon Sep 17 00:00:00 2001 From: "Luis R. Rodriguez" Date: Mon, 17 May 2010 13:15:30 -0400 Subject: ath9k: remove AR9003 from PCI IDs for now We tried to squeeze as much AR9003 support into this kernel release cycle but there are a few features which are still being tested and developed. Some of these features are critical to the stable operation of AR9003 so for now disable AR9003 support all together. This will get re-enabled once all necessary features are in place but very likely will not happen for 2.6.35. Reviewed-by: Don Breslin Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/pci.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index 257b10ba6f57..1ec836cf1c0d 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -28,7 +28,6 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = { { PCI_VDEVICE(ATHEROS, 0x002C) }, /* PCI-E 802.11n bonded out */ { PCI_VDEVICE(ATHEROS, 0x002D) }, /* PCI */ { PCI_VDEVICE(ATHEROS, 0x002E) }, /* PCI-E */ - { PCI_VDEVICE(ATHEROS, 0x0030) }, /* PCI-E AR9300 */ { 0 } }; -- cgit v1.2.2 From b6411fc23c70d7a9f57a0bfb35212ad92b5c2b5e Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Tue, 18 May 2010 11:20:51 +0300 Subject: rndis_wlan: replace wireless_send_event with cfg80211_disconnected MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove (hopefully) last use of WEXT in rndis_wlan. Replace wireless_send_event with missing cfg80211_disconnected in rndis_wlan_do_link_down_work. Reported-by: "Rogério Brito" Signed-off-by: Jussi Kivilinna Signed-off-by: John W. Linville --- drivers/net/wireless/rndis_wlan.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index 2d2890878dea..4bd61ee627c0 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -2572,14 +2572,18 @@ static void rndis_wlan_do_link_up_work(struct usbnet *usbdev) static void rndis_wlan_do_link_down_work(struct usbnet *usbdev) { - union iwreq_data evt; + struct rndis_wlan_private *priv = get_rndis_wlan_priv(usbdev); - netif_carrier_off(usbdev->net); + if (priv->connected) { + priv->connected = false; + memset(priv->bssid, 0, ETH_ALEN); + + deauthenticate(usbdev); - evt.data.flags = 0; - evt.data.length = 0; - memset(evt.ap_addr.sa_data, 0, ETH_ALEN); - wireless_send_event(usbdev->net, SIOCGIWAP, &evt, NULL); + cfg80211_disconnected(usbdev->net, 0, NULL, 0, GFP_KERNEL); + } + + netif_carrier_off(usbdev->net); } static void rndis_wlan_worker(struct work_struct *work) -- cgit v1.2.2 From 4018294b53d1dae026880e45f174c1cc63b5d435 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 13 Apr 2010 16:13:02 -0700 Subject: of: Remove duplicate fields from of_platform_driver .name, .match_table and .owner are duplicated in both of_platform_driver and device_driver. This patch is a removes the extra copies from struct of_platform_driver and converts all users to the device_driver members. This patch is a pretty mechanical change. The usage model doesn't change and if any drivers have been missed, or if anything has been fixed up incorrectly, then it will fail with a compile time error, and the fixup will be trivial. This patch looks big and scary because it touches so many files, but it should be pretty safe. Signed-off-by: Grant Likely Acked-by: Sean MacLennan --- drivers/net/can/mscan/mpc5xxx_can.c | 8 +++++--- drivers/net/can/sja1000/sja1000_of_platform.c | 8 +++++--- drivers/net/ehea/ehea_main.c | 7 +++++-- drivers/net/fec_mpc52xx.c | 8 +++++--- drivers/net/fec_mpc52xx_phy.c | 7 +++++-- drivers/net/fs_enet/fs_enet-main.c | 7 +++++-- drivers/net/fs_enet/mii-bitbang.c | 7 +++++-- drivers/net/fs_enet/mii-fec.c | 7 +++++-- drivers/net/fsl_pq_mdio.c | 7 +++++-- drivers/net/gianfar.c | 10 ++++++---- drivers/net/ibm_newemac/core.c | 8 +++++--- drivers/net/ibm_newemac/mal.c | 8 +++++--- drivers/net/ibm_newemac/rgmii.c | 8 +++++--- drivers/net/ibm_newemac/tah.c | 8 +++++--- drivers/net/ibm_newemac/zmii.c | 8 +++++--- drivers/net/ll_temac_main.c | 2 +- drivers/net/myri_sbus.c | 7 +++++-- drivers/net/niu.c | 7 +++++-- drivers/net/phy/mdio-gpio.c | 7 +++++-- drivers/net/sunbmac.c | 7 +++++-- drivers/net/sunhme.c | 7 +++++-- drivers/net/sunlance.c | 7 +++++-- drivers/net/sunqe.c | 7 +++++-- drivers/net/ucc_geth.c | 7 +++++-- drivers/net/xilinx_emaclite.c | 7 +++++-- 25 files changed, 122 insertions(+), 59 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/can/mscan/mpc5xxx_can.c b/drivers/net/can/mscan/mpc5xxx_can.c index 03e7c48465a2..2120784f8db4 100644 --- a/drivers/net/can/mscan/mpc5xxx_can.c +++ b/drivers/net/can/mscan/mpc5xxx_can.c @@ -393,15 +393,17 @@ static struct of_device_id __devinitdata mpc5xxx_can_table[] = { }; static struct of_platform_driver mpc5xxx_can_driver = { - .owner = THIS_MODULE, - .name = "mpc5xxx_can", + .driver = { + .name = "mpc5xxx_can", + .owner = THIS_MODULE, + .of_match_table = mpc5xxx_can_table, + }, .probe = mpc5xxx_can_probe, .remove = __devexit_p(mpc5xxx_can_remove), #ifdef CONFIG_PM .suspend = mpc5xxx_can_suspend, .resume = mpc5xxx_can_resume, #endif - .match_table = mpc5xxx_can_table, }; static int __init mpc5xxx_can_init(void) diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c index dc5f20cdf93c..158b76ebf3ea 100644 --- a/drivers/net/can/sja1000/sja1000_of_platform.c +++ b/drivers/net/can/sja1000/sja1000_of_platform.c @@ -216,11 +216,13 @@ static struct of_device_id __devinitdata sja1000_ofp_table[] = { MODULE_DEVICE_TABLE(of, sja1000_ofp_table); static struct of_platform_driver sja1000_ofp_driver = { - .owner = THIS_MODULE, - .name = DRV_NAME, + .driver = { + .owner = THIS_MODULE, + .name = DRV_NAME, + .of_match_table = sja1000_ofp_table, + }, .probe = sja1000_ofp_probe, .remove = __devexit_p(sja1000_ofp_remove), - .match_table = sja1000_ofp_table, }; static int __init sja1000_ofp_init(void) diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index 59dac232006c..b23173864c60 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -122,8 +122,11 @@ static struct of_device_id ehea_device_table[] = { MODULE_DEVICE_TABLE(of, ehea_device_table); static struct of_platform_driver ehea_driver = { - .name = "ehea", - .match_table = ehea_device_table, + .driver = { + .name = "ehea", + .owner = THIS_MODULE, + .of_match_table = ehea_device_table, + }, .probe = ehea_probe_adapter, .remove = ehea_remove, }; diff --git a/drivers/net/fec_mpc52xx.c b/drivers/net/fec_mpc52xx.c index 3342056f8aac..be540b67ea57 100644 --- a/drivers/net/fec_mpc52xx.c +++ b/drivers/net/fec_mpc52xx.c @@ -1065,9 +1065,11 @@ static struct of_device_id mpc52xx_fec_match[] = { MODULE_DEVICE_TABLE(of, mpc52xx_fec_match); static struct of_platform_driver mpc52xx_fec_driver = { - .owner = THIS_MODULE, - .name = DRIVER_NAME, - .match_table = mpc52xx_fec_match, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = mpc52xx_fec_match, + }, .probe = mpc52xx_fec_probe, .remove = mpc52xx_fec_remove, #ifdef CONFIG_PM diff --git a/drivers/net/fec_mpc52xx_phy.c b/drivers/net/fec_mpc52xx_phy.c index 0d099e5a652d..006f64d9f96a 100644 --- a/drivers/net/fec_mpc52xx_phy.c +++ b/drivers/net/fec_mpc52xx_phy.c @@ -159,10 +159,13 @@ static struct of_device_id mpc52xx_fec_mdio_match[] = { MODULE_DEVICE_TABLE(of, mpc52xx_fec_mdio_match); struct of_platform_driver mpc52xx_fec_mdio_driver = { - .name = "mpc5200b-fec-phy", + .driver = { + .name = "mpc5200b-fec-phy", + .owner = THIS_MODULE, + .of_match_table = mpc52xx_fec_mdio_match, + }, .probe = mpc52xx_fec_mdio_probe, .remove = mpc52xx_fec_mdio_remove, - .match_table = mpc52xx_fec_mdio_match, }; /* let fec driver call it, since this has to be registered before it */ diff --git a/drivers/net/fs_enet/fs_enet-main.c b/drivers/net/fs_enet/fs_enet-main.c index caeb88b67bc6..cae2d16858d1 100644 --- a/drivers/net/fs_enet/fs_enet-main.c +++ b/drivers/net/fs_enet/fs_enet-main.c @@ -1158,8 +1158,11 @@ static struct of_device_id fs_enet_match[] = { MODULE_DEVICE_TABLE(of, fs_enet_match); static struct of_platform_driver fs_enet_driver = { - .name = "fs_enet", - .match_table = fs_enet_match, + .driver = { + .owner = THIS_MODULE, + .name = "fs_enet", + .of_match_table = fs_enet_match, + }, .probe = fs_enet_probe, .remove = fs_enet_remove, }; diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c index 24ff9f43a62b..0f90685d3d19 100644 --- a/drivers/net/fs_enet/mii-bitbang.c +++ b/drivers/net/fs_enet/mii-bitbang.c @@ -224,8 +224,11 @@ static struct of_device_id fs_enet_mdio_bb_match[] = { MODULE_DEVICE_TABLE(of, fs_enet_mdio_bb_match); static struct of_platform_driver fs_enet_bb_mdio_driver = { - .name = "fsl-bb-mdio", - .match_table = fs_enet_mdio_bb_match, + .driver = { + .name = "fsl-bb-mdio", + .owner = THIS_MODULE, + .of_match_table = fs_enet_mdio_bb_match, + }, .probe = fs_enet_mdio_probe, .remove = fs_enet_mdio_remove, }; diff --git a/drivers/net/fs_enet/mii-fec.c b/drivers/net/fs_enet/mii-fec.c index dc862e779c1f..bddffd169b93 100644 --- a/drivers/net/fs_enet/mii-fec.c +++ b/drivers/net/fs_enet/mii-fec.c @@ -222,8 +222,11 @@ static struct of_device_id fs_enet_mdio_fec_match[] = { MODULE_DEVICE_TABLE(of, fs_enet_mdio_fec_match); static struct of_platform_driver fs_enet_fec_mdio_driver = { - .name = "fsl-fec-mdio", - .match_table = fs_enet_mdio_fec_match, + .driver = { + .name = "fsl-fec-mdio", + .owner = THIS_MODULE, + .of_match_table = fs_enet_mdio_fec_match, + }, .probe = fs_enet_mdio_probe, .remove = fs_enet_mdio_remove, }; diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c index 72489a213bf7..16508535720a 100644 --- a/drivers/net/fsl_pq_mdio.c +++ b/drivers/net/fsl_pq_mdio.c @@ -461,10 +461,13 @@ static struct of_device_id fsl_pq_mdio_match[] = { MODULE_DEVICE_TABLE(of, fsl_pq_mdio_match); static struct of_platform_driver fsl_pq_mdio_driver = { - .name = "fsl-pq_mdio", + .driver = { + .name = "fsl-pq_mdio", + .owner = THIS_MODULE, + .of_match_table = fsl_pq_mdio_match, + }, .probe = fsl_pq_mdio_probe, .remove = fsl_pq_mdio_remove, - .match_table = fsl_pq_mdio_match, }; int __init fsl_pq_mdio_init(void) diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index b71bba91064c..c3b292a31328 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -3054,14 +3054,16 @@ MODULE_DEVICE_TABLE(of, gfar_match); /* Structure for a device driver */ static struct of_platform_driver gfar_driver = { - .name = "fsl-gianfar", - .match_table = gfar_match, - + .driver = { + .name = "fsl-gianfar", + .owner = THIS_MODULE, + .pm = GFAR_PM_OPS, + .of_match_table = gfar_match, + }, .probe = gfar_probe, .remove = gfar_remove, .suspend = gfar_legacy_suspend, .resume = gfar_legacy_resume, - .driver.pm = GFAR_PM_OPS, }; static int __init gfar_init(void) diff --git a/drivers/net/ibm_newemac/core.c b/drivers/net/ibm_newemac/core.c index cda2ba891344..f8c36a5eb4d7 100644 --- a/drivers/net/ibm_newemac/core.c +++ b/drivers/net/ibm_newemac/core.c @@ -2996,9 +2996,11 @@ static struct of_device_id emac_match[] = MODULE_DEVICE_TABLE(of, emac_match); static struct of_platform_driver emac_driver = { - .name = "emac", - .match_table = emac_match, - + .driver = { + .name = "emac", + .owner = THIS_MODULE, + .of_match_table = emac_match, + }, .probe = emac_probe, .remove = emac_remove, }; diff --git a/drivers/net/ibm_newemac/mal.c b/drivers/net/ibm_newemac/mal.c index aba17947e208..fcff9e0bd382 100644 --- a/drivers/net/ibm_newemac/mal.c +++ b/drivers/net/ibm_newemac/mal.c @@ -790,9 +790,11 @@ static struct of_device_id mal_platform_match[] = }; static struct of_platform_driver mal_of_driver = { - .name = "mcmal", - .match_table = mal_platform_match, - + .driver = { + .name = "mcmal", + .owner = THIS_MODULE, + .of_match_table = mal_platform_match, + }, .probe = mal_probe, .remove = mal_remove, }; diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c index 6ab630a79e31..108919bcdf13 100644 --- a/drivers/net/ibm_newemac/rgmii.c +++ b/drivers/net/ibm_newemac/rgmii.c @@ -319,9 +319,11 @@ static struct of_device_id rgmii_match[] = }; static struct of_platform_driver rgmii_driver = { - .name = "emac-rgmii", - .match_table = rgmii_match, - + .driver = { + .name = "emac-rgmii", + .owner = THIS_MODULE, + .of_match_table = rgmii_match, + }, .probe = rgmii_probe, .remove = rgmii_remove, }; diff --git a/drivers/net/ibm_newemac/tah.c b/drivers/net/ibm_newemac/tah.c index 4f64b00dd5e8..044637144c43 100644 --- a/drivers/net/ibm_newemac/tah.c +++ b/drivers/net/ibm_newemac/tah.c @@ -166,9 +166,11 @@ static struct of_device_id tah_match[] = }; static struct of_platform_driver tah_driver = { - .name = "emac-tah", - .match_table = tah_match, - + .driver = { + .name = "emac-tah", + .owner = THIS_MODULE, + .of_match_table = tah_match, + }, .probe = tah_probe, .remove = tah_remove, }; diff --git a/drivers/net/ibm_newemac/zmii.c b/drivers/net/ibm_newemac/zmii.c index b4fa823ed201..046dcd069c45 100644 --- a/drivers/net/ibm_newemac/zmii.c +++ b/drivers/net/ibm_newemac/zmii.c @@ -313,9 +313,11 @@ static struct of_device_id zmii_match[] = }; static struct of_platform_driver zmii_driver = { - .name = "emac-zmii", - .match_table = zmii_match, - + .driver = { + .name = "emac-zmii", + .owner = THIS_MODULE, + .of_match_table = zmii_match, + }, .probe = zmii_probe, .remove = zmii_remove, }; diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c index 9c7395c10e44..dc318330ec79 100644 --- a/drivers/net/ll_temac_main.c +++ b/drivers/net/ll_temac_main.c @@ -955,12 +955,12 @@ static struct of_device_id temac_of_match[] __devinitdata = { MODULE_DEVICE_TABLE(of, temac_of_match); static struct of_platform_driver temac_of_driver = { - .match_table = temac_of_match, .probe = temac_of_probe, .remove = __devexit_p(temac_of_remove), .driver = { .owner = THIS_MODULE, .name = "xilinx_temac", + .of_match_table = temac_of_match, }, }; diff --git a/drivers/net/myri_sbus.c b/drivers/net/myri_sbus.c index e21439f1e775..77835df4d013 100644 --- a/drivers/net/myri_sbus.c +++ b/drivers/net/myri_sbus.c @@ -1161,8 +1161,11 @@ static const struct of_device_id myri_sbus_match[] = { MODULE_DEVICE_TABLE(of, myri_sbus_match); static struct of_platform_driver myri_sbus_driver = { - .name = "myri", - .match_table = myri_sbus_match, + .driver = { + .name = "myri", + .owner = THIS_MODULE, + .of_match_table = myri_sbus_match, + }, .probe = myri_sbus_probe, .remove = __devexit_p(myri_sbus_remove), }; diff --git a/drivers/net/niu.c b/drivers/net/niu.c index 9c1604c04450..406d72c4eb71 100644 --- a/drivers/net/niu.c +++ b/drivers/net/niu.c @@ -10207,8 +10207,11 @@ static const struct of_device_id niu_match[] = { MODULE_DEVICE_TABLE(of, niu_match); static struct of_platform_driver niu_of_driver = { - .name = "niu", - .match_table = niu_match, + .driver = { + .name = "niu", + .owner = THIS_MODULE, + .of_match_table = niu_match, + }, .probe = niu_of_probe, .remove = __devexit_p(niu_of_remove), }; diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index 641973ca2417..fc5fef2a8175 100644 --- a/drivers/net/phy/mdio-gpio.c +++ b/drivers/net/phy/mdio-gpio.c @@ -241,8 +241,11 @@ static struct of_device_id mdio_ofgpio_match[] = { MODULE_DEVICE_TABLE(of, mdio_ofgpio_match); static struct of_platform_driver mdio_ofgpio_driver = { - .name = "mdio-gpio", - .match_table = mdio_ofgpio_match, + .driver = { + .name = "mdio-gpio", + .owner = THIS_MODULE, + .of_match_table = mdio_ofgpio_match, + }, .probe = mdio_ofgpio_probe, .remove = __devexit_p(mdio_ofgpio_remove), }; diff --git a/drivers/net/sunbmac.c b/drivers/net/sunbmac.c index bd286ec5abd9..5f0ec390d6fc 100644 --- a/drivers/net/sunbmac.c +++ b/drivers/net/sunbmac.c @@ -1292,8 +1292,11 @@ static const struct of_device_id bigmac_sbus_match[] = { MODULE_DEVICE_TABLE(of, bigmac_sbus_match); static struct of_platform_driver bigmac_sbus_driver = { - .name = "sunbmac", - .match_table = bigmac_sbus_match, + .driver = { + .name = "sunbmac", + .owner = THIS_MODULE, + .of_match_table = bigmac_sbus_match, + }, .probe = bigmac_sbus_probe, .remove = __devexit_p(bigmac_sbus_remove), }; diff --git a/drivers/net/sunhme.c b/drivers/net/sunhme.c index c6463f71c916..ad2cfc5bb9e1 100644 --- a/drivers/net/sunhme.c +++ b/drivers/net/sunhme.c @@ -3295,8 +3295,11 @@ static const struct of_device_id hme_sbus_match[] = { MODULE_DEVICE_TABLE(of, hme_sbus_match); static struct of_platform_driver hme_sbus_driver = { - .name = "hme", - .match_table = hme_sbus_match, + .driver = { + .name = "hme", + .owner = THIS_MODULE, + .of_match_table = hme_sbus_match, + }, .probe = hme_sbus_probe, .remove = __devexit_p(hme_sbus_remove), }; diff --git a/drivers/net/sunlance.c b/drivers/net/sunlance.c index 28afc86e0694..0fc014ef9e98 100644 --- a/drivers/net/sunlance.c +++ b/drivers/net/sunlance.c @@ -1546,8 +1546,11 @@ static const struct of_device_id sunlance_sbus_match[] = { MODULE_DEVICE_TABLE(of, sunlance_sbus_match); static struct of_platform_driver sunlance_sbus_driver = { - .name = "sunlance", - .match_table = sunlance_sbus_match, + .driver = { + .name = "sunlance", + .owner = THIS_MODULE, + .of_match_table = sunlance_sbus_match, + }, .probe = sunlance_sbus_probe, .remove = __devexit_p(sunlance_sbus_remove), }; diff --git a/drivers/net/sunqe.c b/drivers/net/sunqe.c index 9864f4fa69d5..8fe86b287e51 100644 --- a/drivers/net/sunqe.c +++ b/drivers/net/sunqe.c @@ -978,8 +978,11 @@ static const struct of_device_id qec_sbus_match[] = { MODULE_DEVICE_TABLE(of, qec_sbus_match); static struct of_platform_driver qec_sbus_driver = { - .name = "qec", - .match_table = qec_sbus_match, + .driver = { + .name = "qec", + .owner = THIS_MODULE, + .of_match_table = qec_sbus_match, + }, .probe = qec_sbus_probe, .remove = __devexit_p(qec_sbus_remove), }; diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 88ebfc976735..0ab51037bf88 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3965,8 +3965,11 @@ static struct of_device_id ucc_geth_match[] = { MODULE_DEVICE_TABLE(of, ucc_geth_match); static struct of_platform_driver ucc_geth_driver = { - .name = DRV_NAME, - .match_table = ucc_geth_match, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = ucc_geth_match, + }, .probe = ucc_geth_probe, .remove = ucc_geth_remove, .suspend = ucc_geth_suspend, diff --git a/drivers/net/xilinx_emaclite.c b/drivers/net/xilinx_emaclite.c index 3dd2416db540..67f9237237dd 100644 --- a/drivers/net/xilinx_emaclite.c +++ b/drivers/net/xilinx_emaclite.c @@ -1293,8 +1293,11 @@ static struct of_device_id xemaclite_of_match[] __devinitdata = { MODULE_DEVICE_TABLE(of, xemaclite_of_match); static struct of_platform_driver xemaclite_of_driver = { - .name = DRIVER_NAME, - .match_table = xemaclite_of_match, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + .of_match_table = xemaclite_of_match, + }, .probe = xemaclite_of_probe, .remove = __devexit_p(xemaclite_of_remove), }; -- cgit v1.2.2 From 6fc7f5730b71916bc44389015d404f668674c64c Mon Sep 17 00:00:00 2001 From: Scott Feldman Date: Sat, 22 May 2010 17:29:52 +0000 Subject: enic: bug fix: sprintf UUID to string as u8[] rather than u16[] array Signed-off-by: Scott Feldman Signed-off-by: David S. Miller --- drivers/net/enic/enic_main.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index e125113759a5..7e973237bf98 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -1034,9 +1034,10 @@ static int enic_set_port_profile(struct enic *enic, u8 request, u8 *mac, { struct vic_provinfo *vp; u8 oui[3] = VIC_PROVINFO_CISCO_OUI; - unsigned short *uuid; + u8 *uuid; char uuid_str[38]; - static char *uuid_fmt = "%04X%04X-%04X-%04X-%04X-%04X%04X%04X"; + static char *uuid_fmt = "%02X%02X%02X%02X-%02X%02X-%02X%02X-" + "%02X%02X-%02X%02X%02X%02X%0X%02X"; int err; if (!name) @@ -1058,20 +1059,24 @@ static int enic_set_port_profile(struct enic *enic, u8 request, u8 *mac, ETH_ALEN, mac); if (instance_uuid) { - uuid = (unsigned short *)instance_uuid; + uuid = instance_uuid; sprintf(uuid_str, uuid_fmt, - uuid[0], uuid[1], uuid[2], uuid[3], - uuid[4], uuid[5], uuid[6], uuid[7]); + uuid[0], uuid[1], uuid[2], uuid[3], + uuid[4], uuid[5], uuid[6], uuid[7], + uuid[8], uuid[9], uuid[10], uuid[11], + uuid[12], uuid[13], uuid[14], uuid[15]); vic_provinfo_add_tlv(vp, VIC_LINUX_PROV_TLV_CLIENT_UUID_STR, sizeof(uuid_str), uuid_str); } if (host_uuid) { - uuid = (unsigned short *)host_uuid; + uuid = host_uuid; sprintf(uuid_str, uuid_fmt, - uuid[0], uuid[1], uuid[2], uuid[3], - uuid[4], uuid[5], uuid[6], uuid[7]); + uuid[0], uuid[1], uuid[2], uuid[3], + uuid[4], uuid[5], uuid[6], uuid[7], + uuid[8], uuid[9], uuid[10], uuid[11], + uuid[12], uuid[13], uuid[14], uuid[15]); vic_provinfo_add_tlv(vp, VIC_LINUX_PROV_TLV_HOST_UUID_STR, sizeof(uuid_str), uuid_str); -- cgit v1.2.2 From 418c437d8b4b87815f3afed89da2aa0078d5379d Mon Sep 17 00:00:00 2001 From: Scott Feldman Date: Sat, 22 May 2010 17:29:58 +0000 Subject: enic: Use random mac addr when associating port-profile Use random mac addr for interface when associating port-profile to dynamic enic device, in the case no mac addr was previous assigned. Signed-off-by: Scott Feldman Signed-off-by: David S. Miller --- drivers/net/enic/enic_main.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c index 7e973237bf98..6586b5c7e4b6 100644 --- a/drivers/net/enic/enic_main.c +++ b/drivers/net/enic/enic_main.c @@ -1132,6 +1132,14 @@ static int enic_set_vf_port(struct net_device *netdev, int vf, switch (request) { case PORT_REQUEST_ASSOCIATE: + /* If the interface mac addr hasn't been assigned, + * assign a random mac addr before setting port- + * profile. + */ + + if (is_zero_ether_addr(netdev->dev_addr)) + random_ether_addr(netdev->dev_addr); + if (port[IFLA_PORT_PROFILE]) name = nla_data(port[IFLA_PORT_PROFILE]); -- cgit v1.2.2 From ee02a4ef40f2e049c80f9cc04e21a9b48288b6ff Mon Sep 17 00:00:00 2001 From: Thomas Chou Date: Sun, 23 May 2010 16:44:02 +0000 Subject: ethoc: fix null dereference in ethoc_probe Dan reported the patch 0baa080c75c: "ethoc: use system memory as buffer" introduced a potential null dereference. 1060 free: 1061 if (priv->dma_alloc) ^^^^^^^^^^^^^^^ priv can be null here. He also suggested that the error handling is not complete. This patch fixes the null priv issue and improves resources releasing in ethoc_probe() and ethoc_remove(). Reported-by: Dan Carpenter Signed-off-by: Thomas Chou Signed-off-by: David S. Miller --- drivers/net/ethoc.c | 34 ++++++++++++++++++++++++++++++---- 1 file changed, 30 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c index 14cbde5cf68e..6ed2df14ec84 100644 --- a/drivers/net/ethoc.c +++ b/drivers/net/ethoc.c @@ -174,6 +174,7 @@ MODULE_PARM_DESC(buffer_size, "DMA buffer allocation size"); * @iobase: pointer to I/O memory region * @membase: pointer to buffer memory region * @dma_alloc: dma allocated buffer size + * @io_region_size: I/O memory region size * @num_tx: number of send buffers * @cur_tx: last send buffer written * @dty_tx: last buffer actually sent @@ -193,6 +194,7 @@ struct ethoc { void __iomem *iobase; void __iomem *membase; int dma_alloc; + resource_size_t io_region_size; unsigned int num_tx; unsigned int cur_tx; @@ -943,6 +945,7 @@ static int ethoc_probe(struct platform_device *pdev) priv = netdev_priv(netdev); priv->netdev = netdev; priv->dma_alloc = 0; + priv->io_region_size = mmio->end - mmio->start + 1; priv->iobase = devm_ioremap_nocache(&pdev->dev, netdev->base_addr, resource_size(mmio)); @@ -1047,20 +1050,34 @@ static int ethoc_probe(struct platform_device *pdev) ret = register_netdev(netdev); if (ret < 0) { dev_err(&netdev->dev, "failed to register interface\n"); - goto error; + goto error2; } goto out; +error2: + netif_napi_del(&priv->napi); error: mdiobus_unregister(priv->mdio); free_mdio: kfree(priv->mdio->irq); mdiobus_free(priv->mdio); free: - if (priv->dma_alloc) - dma_free_coherent(NULL, priv->dma_alloc, priv->membase, - netdev->mem_start); + if (priv) { + if (priv->dma_alloc) + dma_free_coherent(NULL, priv->dma_alloc, priv->membase, + netdev->mem_start); + else if (priv->membase) + devm_iounmap(&pdev->dev, priv->membase); + if (priv->iobase) + devm_iounmap(&pdev->dev, priv->iobase); + } + if (mem) + devm_release_mem_region(&pdev->dev, mem->start, + mem->end - mem->start + 1); + if (mmio) + devm_release_mem_region(&pdev->dev, mmio->start, + mmio->end - mmio->start + 1); free_netdev(netdev); out: return ret; @@ -1078,6 +1095,7 @@ static int ethoc_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); if (netdev) { + netif_napi_del(&priv->napi); phy_disconnect(priv->phy); priv->phy = NULL; @@ -1089,6 +1107,14 @@ static int ethoc_remove(struct platform_device *pdev) if (priv->dma_alloc) dma_free_coherent(NULL, priv->dma_alloc, priv->membase, netdev->mem_start); + else { + devm_iounmap(&pdev->dev, priv->membase); + devm_release_mem_region(&pdev->dev, netdev->mem_start, + netdev->mem_end - netdev->mem_start + 1); + } + devm_iounmap(&pdev->dev, priv->iobase); + devm_release_mem_region(&pdev->dev, netdev->base_addr, + priv->io_region_size); unregister_netdev(netdev); free_netdev(netdev); } -- cgit v1.2.2 From 7f267de41fde594500cbbccb1b29acb4475f2da2 Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Tue, 18 May 2010 01:34:46 +0000 Subject: bfin_mac: fix memleak in mii_bus{probe|remove} Fix memory leak with miibus->irq Signed-off-by: Denis Kirjanov Signed-off-by: David S. Miller --- drivers/net/bfin_mac.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 39a54bad397f..368f33313fb6 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -1626,6 +1626,7 @@ static int __devinit bfin_mii_bus_probe(struct platform_device *pdev) return 0; out_err_mdiobus_register: + kfree(miibus->irq); mdiobus_free(miibus); out_err_alloc: peripheral_free_list(pin_req); @@ -1638,6 +1639,7 @@ static int __devexit bfin_mii_bus_remove(struct platform_device *pdev) struct mii_bus *miibus = platform_get_drvdata(pdev); platform_set_drvdata(pdev, NULL); mdiobus_unregister(miibus); + kfree(miibus->irq); mdiobus_free(miibus); peripheral_free_list(pin_req); return 0; -- cgit v1.2.2 From a5e93151e4390e4d27bee27ddb73f78f58260594 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 22 May 2010 10:27:48 +0000 Subject: pppoe: uninitialized variable in pppoe_flush_dev() This assignment got deleted along with the checks by mistake. This comes from: 8753d29fd "pppoe: remove unnecessary checks in pppoe_flush_dev" Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- drivers/net/pppoe.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net') diff --git a/drivers/net/pppoe.c b/drivers/net/pppoe.c index b1b93ff2351f..805b64d1e893 100644 --- a/drivers/net/pppoe.c +++ b/drivers/net/pppoe.c @@ -289,6 +289,7 @@ static void pppoe_flush_dev(struct net_device *dev) struct pppoe_net *pn; int i; + pn = pppoe_pernet(dev_net(dev)); write_lock_bh(&pn->hash_lock); for (i = 0; i < PPPOE_HASH_SIZE; i++) { struct pppox_sock *po = pn->hash_table[i]; -- cgit v1.2.2 From eda6e6f86b5f95b982ac7ebf7cf5be2a29a291e9 Mon Sep 17 00:00:00 2001 From: Graf Yang Date: Sat, 22 May 2010 22:00:10 +0000 Subject: net/irda: bfin_sir: IRDA is not affected by anomaly 05000230 Anomaly 05000230 (over sampling of the UART STOP bit) applies only when the peripheral is operating in UART mode. So drop the anomaly handling in the IRDA code. Signed-off-by: Graf Yang Signed-off-by: Mike Frysinger Signed-off-by: David S. Miller --- drivers/net/irda/bfin_sir.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c index 911c082cee5a..f940dfa1f7f8 100644 --- a/drivers/net/irda/bfin_sir.c +++ b/drivers/net/irda/bfin_sir.c @@ -107,8 +107,12 @@ static int bfin_sir_set_speed(struct bfin_sir_port *port, int speed) case 57600: case 115200: - quot = (port->clk + (8 * speed)) / (16 * speed)\ - - ANOMALY_05000230; + /* + * IRDA is not affected by anomaly 05000230, so there is no + * need to tweak the divisor like he UART driver (which will + * slightly speed up the baud rate on us). + */ + quot = (port->clk + (8 * speed)) / (16 * speed); do { udelay(utime); -- cgit v1.2.2 From 8286274284e15b11b0f531b6ceeef21fbe00a8dd Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Mon, 24 May 2010 00:14:10 -0700 Subject: tun: Update classid on packet injection This patch makes tun update its socket classid every time we inject a packet into the network stack. This is so that any updates made by the admin to the process writing packets to tun is effected. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- drivers/net/tun.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 97b25533e5fb..8793c2bf7f15 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -526,6 +526,8 @@ static inline struct sk_buff *tun_alloc_skb(struct tun_struct *tun, struct sk_buff *skb; int err; + sock_update_classid(sk); + /* Under a page? Don't bother with paged skb. */ if (prepad + len < PAGE_SIZE || !linear) linear = len; -- cgit v1.2.2 From 5eb32bd059379530fc3809a7fcf183feca75f601 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Mon, 24 May 2010 00:36:13 -0700 Subject: fec: add support for PHY interface platform data The i.MX25 PDK uses RMII to communicate with its PHY. This patch adds the ability to configure RMII, based on platform data. Signed-off-by: Baruch Siach Acked-by: Greg Ungerer Signed-off-by: David S. Miller --- drivers/net/fec.c | 22 ++++++++++++++++++++++ drivers/net/fec.h | 2 ++ 2 files changed, 24 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 42d9ac9ba395..326465ffbb23 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -41,6 +41,7 @@ #include #include #include +#include #include @@ -182,6 +183,7 @@ struct fec_enet_private { struct phy_device *phy_dev; int mii_timeout; uint phy_speed; + phy_interface_t phy_interface; int index; int link; int full_duplex; @@ -1191,6 +1193,21 @@ fec_restart(struct net_device *dev, int duplex) /* Set MII speed */ writel(fep->phy_speed, fep->hwp + FEC_MII_SPEED); +#ifdef FEC_MIIGSK_ENR + if (fep->phy_interface == PHY_INTERFACE_MODE_RMII) { + /* disable the gasket and wait */ + writel(0, fep->hwp + FEC_MIIGSK_ENR); + while (readl(fep->hwp + FEC_MIIGSK_ENR) & 4) + udelay(1); + + /* configure the gasket: RMII, 50 MHz, no loopback, no echo */ + writel(1, fep->hwp + FEC_MIIGSK_CFGR); + + /* re-enable the gasket */ + writel(2, fep->hwp + FEC_MIIGSK_ENR); + } +#endif + /* And last, enable the transmit and receive processing */ writel(2, fep->hwp + FEC_ECNTRL); writel(0, fep->hwp + FEC_R_DES_ACTIVE); @@ -1226,6 +1243,7 @@ static int __devinit fec_probe(struct platform_device *pdev) { struct fec_enet_private *fep; + struct fec_platform_data *pdata; struct net_device *ndev; int i, irq, ret = 0; struct resource *r; @@ -1259,6 +1277,10 @@ fec_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ndev); + pdata = pdev->dev.platform_data; + if (pdata) + fep->phy_interface = pdata->phy; + /* This device has up to three irqs on some platforms */ for (i = 0; i < 3; i++) { irq = platform_get_irq(pdev, i); diff --git a/drivers/net/fec.h b/drivers/net/fec.h index cc47f3f057c7..2c48b25668d5 100644 --- a/drivers/net/fec.h +++ b/drivers/net/fec.h @@ -43,6 +43,8 @@ #define FEC_R_DES_START 0x180 /* Receive descriptor ring */ #define FEC_X_DES_START 0x184 /* Transmit descriptor ring */ #define FEC_R_BUFF_SIZE 0x188 /* Maximum receive buff size */ +#define FEC_MIIGSK_CFGR 0x300 /* MIIGSK Configuration reg */ +#define FEC_MIIGSK_ENR 0x308 /* MIIGSK Enable reg */ #else -- cgit v1.2.2 From a69eee4988752c7196677958b4ed8f4c2b28499a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 May 2010 07:45:43 -0700 Subject: Revert "ath9k: Group Key fix for VAPs" This reverts commit 03ceedea972a82d343fa5c2528b3952fa9e615d5, since it breaks resume from suspend-to-ram on Rafael's Acer Ferrari One. NetworkManager thinks everything is ok, but it can't connect to the AP to get an IP address after the resume. In fact, it even breaks resume for non-ath9k chipsets: reverting it also fixes Rafael's Toshiba Protege R500 with the iwlagn driver. As Johannes says: "Indeed, this patch needs to be reverted. That mac80211 change is wrong and completely unnecessary." Reported-and-requested-by: Rafael J. Wysocki Acked-by: Johannes Berg Cc: Daniel Yingqiang Ma Cc: John W. Linville Cc: David Miller Signed-off-by: Linus Torvalds --- drivers/net/wireless/ath/ath9k/main.c | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 893b552981a0..abfa0493236f 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -752,7 +752,6 @@ static int ath_key_config(struct ath_common *common, struct ath_hw *ah = common->ah; struct ath9k_keyval hk; const u8 *mac = NULL; - u8 gmac[ETH_ALEN]; int ret = 0; int idx; @@ -776,30 +775,9 @@ static int ath_key_config(struct ath_common *common, memcpy(hk.kv_val, key->key, key->keylen); if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { - - if (key->ap_addr) { - /* - * Group keys on hardware that supports multicast frame - * key search use a mac that is the sender's address with - * the high bit set instead of the app-specified address. - */ - memcpy(gmac, key->ap_addr, ETH_ALEN); - gmac[0] |= 0x80; - mac = gmac; - - if (key->alg == ALG_TKIP) - idx = ath_reserve_key_cache_slot_tkip(common); - else - idx = ath_reserve_key_cache_slot(common); - if (idx < 0) - mac = NULL; /* no free key cache entries */ - } - - if (!mac) { - /* For now, use the default keys for broadcast keys. This may - * need to change with virtual interfaces. */ - idx = key->keyidx; - } + /* For now, use the default keys for broadcast keys. This may + * need to change with virtual interfaces. */ + idx = key->keyidx; } else if (key->keyidx) { if (WARN_ON(!sta)) return -EOPNOTSUPP; -- cgit v1.2.2 From b5eae9ff5ba6d76de19286dd6429acd7cde3f79d Mon Sep 17 00:00:00 2001 From: Bruno Randolf Date: Wed, 19 May 2010 10:18:16 +0900 Subject: ath5k: consistently use rx_bufsize for RX DMA We should use the same buffer size we set up for DMA also in the hardware descriptor. Previously we used common->rx_bufsize for setting up the DMA mapping, but used skb_tailroom(skb) for the size we tell to the hardware in the descriptor itself. The problem is that skb_tailroom(skb) can give us a larger value than the size we set up for DMA before. This allows the hardware to write into memory locations not set up for DMA. In practice this should rarely happen because all packets should be smaller than the maximum 802.11 packet size. On the tested platform rx_bufsize is 2528, and we allocated an skb of 2559 bytes length (including padding for cache alignment) but sbk_tailroom() was 2592. Just consistently use rx_bufsize for all RX DMA memory sizes. Also use the return value of the descriptor setup function. Cc: stable@kernel.org Signed-off-by: Bruno Randolf Reviewed-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/base.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 5f04cf38a5bc..cc6d41dec332 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -1214,6 +1214,7 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) struct ath5k_hw *ah = sc->ah; struct sk_buff *skb = bf->skb; struct ath5k_desc *ds; + int ret; if (!skb) { skb = ath5k_rx_skb_alloc(sc, &bf->skbaddr); @@ -1240,9 +1241,9 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf) ds = bf->desc; ds->ds_link = bf->daddr; /* link to self */ ds->ds_data = bf->skbaddr; - ah->ah_setup_rx_desc(ah, ds, - skb_tailroom(skb), /* buffer size */ - 0); + ret = ah->ah_setup_rx_desc(ah, ds, ah->common.rx_bufsize, 0); + if (ret) + return ret; if (sc->rxlink != NULL) *sc->rxlink = bf->daddr; -- cgit v1.2.2 From 52a9bd2a8fac5193435bb575313c89656709aea8 Mon Sep 17 00:00:00 2001 From: Helmut Schaa Date: Wed, 19 May 2010 08:47:59 +0200 Subject: rt2x00: don't use to_pci_dev in rt2x00pci_uninitialize Don't use to_pci_dev in rt2x00pci_uninitialize to get the allocated irq as it won't work for platform devices (SoC). Instead, use the irq field that's already used everywhere else. Signed-off-by: Helmut Schaa Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c index a016f7ccde29..f71eee67f977 100644 --- a/drivers/net/wireless/rt2x00/rt2x00pci.c +++ b/drivers/net/wireless/rt2x00/rt2x00pci.c @@ -206,7 +206,7 @@ void rt2x00pci_uninitialize(struct rt2x00_dev *rt2x00dev) /* * Free irq line. */ - free_irq(to_pci_dev(rt2x00dev->dev)->irq, rt2x00dev); + free_irq(rt2x00dev->irq, rt2x00dev); /* * Free DMA -- cgit v1.2.2 From 617f3d0d71e2eae4d8d475cefe9363b140e52083 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Mar 2010 02:52:38 +0900 Subject: wireless: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo Cc: Stephen Rothwell Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc.h | 1 + drivers/net/wireless/iwlwifi/iwl-agn-ict.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index ad556aa8da39..c251603ab032 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -23,6 +23,7 @@ #include #include #include +#include #include #include "common.h" diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c index a273e373b7b0..c92b2c0cbd91 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-ict.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-ict.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include "iwl-dev.h" -- cgit v1.2.2 From 3dc3fc52ea1537f5f37ab301d2b1468a0e79988f Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 24 May 2010 13:36:37 -0400 Subject: Revert "ath9k: Group Key fix for VAPs" This reverts commit 03ceedea972a82d343fa5c2528b3952fa9e615d5. This patch was reported to cause a regression in which connectivity is lost and cannot be reestablished after a suspend/resume cycle. Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 893b552981a0..abfa0493236f 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -752,7 +752,6 @@ static int ath_key_config(struct ath_common *common, struct ath_hw *ah = common->ah; struct ath9k_keyval hk; const u8 *mac = NULL; - u8 gmac[ETH_ALEN]; int ret = 0; int idx; @@ -776,30 +775,9 @@ static int ath_key_config(struct ath_common *common, memcpy(hk.kv_val, key->key, key->keylen); if (!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { - - if (key->ap_addr) { - /* - * Group keys on hardware that supports multicast frame - * key search use a mac that is the sender's address with - * the high bit set instead of the app-specified address. - */ - memcpy(gmac, key->ap_addr, ETH_ALEN); - gmac[0] |= 0x80; - mac = gmac; - - if (key->alg == ALG_TKIP) - idx = ath_reserve_key_cache_slot_tkip(common); - else - idx = ath_reserve_key_cache_slot(common); - if (idx < 0) - mac = NULL; /* no free key cache entries */ - } - - if (!mac) { - /* For now, use the default keys for broadcast keys. This may - * need to change with virtual interfaces. */ - idx = key->keyidx; - } + /* For now, use the default keys for broadcast keys. This may + * need to change with virtual interfaces. */ + idx = key->keyidx; } else if (key->keyidx) { if (WARN_ON(!sta)) return -EOPNOTSUPP; -- cgit v1.2.2 From 9655a6ec19ca656af246fb80817aa337892aefbf Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Thu, 13 May 2010 21:16:03 +0200 Subject: rt2x00: Fix failed SLEEP->AWAKE and AWAKE->SLEEP transitions. (Based on a patch created by Ondrej Zary) In some circumstances the Ralink devices do not properly go to sleep or wake up, with timeouts occurring. Fix this by retrying telling the device that it has to wake up or sleep. Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2400pci.c | 9 +++++---- drivers/net/wireless/rt2x00/rt2500pci.c | 9 +++++---- drivers/net/wireless/rt2x00/rt61pci.c | 7 ++++--- drivers/net/wireless/rt2x00/rt73usb.c | 7 ++++--- 4 files changed, 18 insertions(+), 14 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 4ba7b038928f..ad2c98af7e9d 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -926,7 +926,7 @@ static void rt2400pci_disable_radio(struct rt2x00_dev *rt2x00dev) static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { - u32 reg; + u32 reg, reg2; unsigned int i; char put_to_sleep; char bbp_state; @@ -947,11 +947,12 @@ static int rt2400pci_set_state(struct rt2x00_dev *rt2x00dev, * device has entered the correct state. */ for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); - bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE); - rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE); + rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®2); + bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE); + rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE); if (bbp_state == state && rf_state == state) return 0; + rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg); msleep(10); } diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index 89d132d4af12..41da3d218c65 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -1084,7 +1084,7 @@ static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev) static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { - u32 reg; + u32 reg, reg2; unsigned int i; char put_to_sleep; char bbp_state; @@ -1105,11 +1105,12 @@ static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev, * device has entered the correct state. */ for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®); - bbp_state = rt2x00_get_field32(reg, PWRCSR1_BBP_CURR_STATE); - rf_state = rt2x00_get_field32(reg, PWRCSR1_RF_CURR_STATE); + rt2x00pci_register_read(rt2x00dev, PWRCSR1, ®2); + bbp_state = rt2x00_get_field32(reg2, PWRCSR1_BBP_CURR_STATE); + rf_state = rt2x00_get_field32(reg2, PWRCSR1_RF_CURR_STATE); if (bbp_state == state && rf_state == state) return 0; + rt2x00pci_register_write(rt2x00dev, PWRCSR1, reg); msleep(10); } diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 2e3076f67535..6a74baf4e934 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -1689,7 +1689,7 @@ static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev) static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { - u32 reg; + u32 reg, reg2; unsigned int i; char put_to_sleep; @@ -1706,10 +1706,11 @@ static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) * device has entered the correct state. */ for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®); - state = rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE); + rt2x00pci_register_read(rt2x00dev, MAC_CSR12, ®2); + state = rt2x00_get_field32(reg2, MAC_CSR12_BBP_CURRENT_STATE); if (state == !put_to_sleep) return 0; + rt2x00pci_register_write(rt2x00dev, MAC_CSR12, reg); msleep(10); } diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index e35bd19c3c5a..6e0d82efe924 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -1366,7 +1366,7 @@ static void rt73usb_disable_radio(struct rt2x00_dev *rt2x00dev) static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) { - u32 reg; + u32 reg, reg2; unsigned int i; char put_to_sleep; @@ -1383,10 +1383,11 @@ static int rt73usb_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state) * device has entered the correct state. */ for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2x00usb_register_read(rt2x00dev, MAC_CSR12, ®); - state = rt2x00_get_field32(reg, MAC_CSR12_BBP_CURRENT_STATE); + rt2x00usb_register_read(rt2x00dev, MAC_CSR12, ®2); + state = rt2x00_get_field32(reg2, MAC_CSR12_BBP_CURRENT_STATE); if (state == !put_to_sleep) return 0; + rt2x00usb_register_write(rt2x00dev, MAC_CSR12, reg); msleep(10); } -- cgit v1.2.2 From 663cb47cc2c5acd32850f67d051e47d62ed199c9 Mon Sep 17 00:00:00 2001 From: Gertjan van Wingerde Date: Thu, 13 May 2010 21:16:04 +0200 Subject: rt2x00: Fix rt2800usb TX descriptor writing. The recent changes to skb handling introduced a bug in the rt2800usb TX descriptor writing whereby the length of the USB packet wasn't calculated correctly. Found via code inspection, as the devices themselves didn't seem to mind. Signed-off-by: Gertjan van Wingerde Acked-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2800usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c index 0f8b84b7224c..699161327d65 100644 --- a/drivers/net/wireless/rt2x00/rt2800usb.c +++ b/drivers/net/wireless/rt2x00/rt2800usb.c @@ -413,7 +413,7 @@ static void rt2800usb_write_tx_desc(struct rt2x00_dev *rt2x00dev, */ rt2x00_desc_read(txi, 0, &word); rt2x00_set_field32(&word, TXINFO_W0_USB_DMA_TX_PKT_LEN, - skb->len + TXWI_DESC_SIZE); + skb->len - TXINFO_DESC_SIZE); rt2x00_set_field32(&word, TXINFO_W0_WIV, !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags)); rt2x00_set_field32(&word, TXINFO_W0_QSEL, 2); -- cgit v1.2.2 From 690e781c5a3241d2366a3120ca410162da9c365e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 14 May 2010 16:50:56 +0200 Subject: ath9k_htc: dereferencing before check in hif_usb_tx_cb() After c11d8f89d3b7: "ath9k_htc: Simplify TX URB management" we no longer assume that tx_buf is a non-null pointer. Signed-off-by: Dan Carpenter Acked-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hif_usb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 46dc41a16faa..ac82911ee609 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -107,12 +107,14 @@ static inline void ath9k_skb_queue_purge(struct hif_device_usb *hif_dev, static void hif_usb_tx_cb(struct urb *urb) { struct tx_buf *tx_buf = (struct tx_buf *) urb->context; - struct hif_device_usb *hif_dev = tx_buf->hif_dev; + struct hif_device_usb *hif_dev; struct sk_buff *skb; - if (!hif_dev || !tx_buf) + if (!tx_buf || !tx_buf->hif_dev) return; + hif_dev = tx_buf->hif_dev; + switch (urb->status) { case 0: break; -- cgit v1.2.2 From 7606688afc767c0b94bb2d79512affe3ba1264ce Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 14 May 2010 16:52:37 +0200 Subject: ath9k_htc: rare leak in ath9k_hif_usb_alloc_tx_urbs() This is obviously a small picky thing. The original error handling code doesn't free the most recent allocations which haven't been added to the hif_dev->tx.tx_buf list yet. Signed-off-by: Dan Carpenter Acked-by: Sujith Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hif_usb.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index ac82911ee609..77b359162d6c 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -609,6 +609,10 @@ static int ath9k_hif_usb_alloc_tx_urbs(struct hif_device_usb *hif_dev) return 0; err: + if (tx_buf) { + kfree(tx_buf->buf); + kfree(tx_buf); + } ath9k_hif_usb_dealloc_tx_urbs(hif_dev); return -ENOMEM; } -- cgit v1.2.2 From 96900c751dd16fc9455e7184cbe8758ac7aa7e79 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 14 May 2010 16:53:46 +0200 Subject: iwlwifi: testing the wrong variable in iwl_add_bssid_station() The intent here is to test that "sta_id_r" is a valid pointer. We do this same test later on in the function. Btw iwl_add_bssid_station() is called from two places and "sta_id_r" is a valid pointer from both callers. Signed-off-by: Dan Carpenter Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-sta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 85ed235ac901..83a26361a9b5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -431,7 +431,7 @@ int iwl_add_bssid_station(struct iwl_priv *priv, const u8 *addr, bool init_rs, struct iwl_link_quality_cmd *link_cmd; unsigned long flags; - if (*sta_id_r) + if (sta_id_r) *sta_id_r = IWL_INVALID_STATION; ret = iwl_add_station_common(priv, addr, 0, NULL, &sta_id); -- cgit v1.2.2 From ededf1f82ac8f06a0311097a68ccb582d32e70d5 Mon Sep 17 00:00:00 2001 From: Vasanthakumar Thiagarajan Date: Sat, 22 May 2010 23:58:13 -0700 Subject: ath9k: Fix rx of mcast/bcast frames in PS mode with auto sleep The functionality to keep the device awake until it is done with the rx of any mcast/bcast frames which are pending on AP should also be added to the hardwares which support auto sleep feature. This patch fixes frequent failures in ARP resolution when it is initiated by the other end. Currently auto sleep is enabled only for ar9003 in ath9k. Signed-off-by: Vasanthakumar Thiagarajan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/recv.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index ba139132c85f..ca6065b71b46 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -19,6 +19,12 @@ #define SKB_CB_ATHBUF(__skb) (*((struct ath_buf **)__skb->cb)) +static inline bool ath9k_check_auto_sleep(struct ath_softc *sc) +{ + return sc->ps_enabled && + (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP); +} + static struct ieee80211_hw * ath_get_virt_hw(struct ath_softc *sc, struct ieee80211_hdr *hdr) { @@ -616,8 +622,8 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb) hdr = (struct ieee80211_hdr *)skb->data; /* Process Beacon and CAB receive in PS state */ - if ((sc->ps_flags & PS_WAIT_FOR_BEACON) && - ieee80211_is_beacon(hdr->frame_control)) + if (((sc->ps_flags & PS_WAIT_FOR_BEACON) || ath9k_check_auto_sleep(sc)) + && ieee80211_is_beacon(hdr->frame_control)) ath_rx_ps_beacon(sc, skb); else if ((sc->ps_flags & PS_WAIT_FOR_CAB) && (ieee80211_is_data(hdr->frame_control) || @@ -932,9 +938,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) sc->rx.rxotherant = 0; } - if (unlikely(sc->ps_flags & (PS_WAIT_FOR_BEACON | - PS_WAIT_FOR_CAB | - PS_WAIT_FOR_PSPOLL_DATA))) + if (unlikely(ath9k_check_auto_sleep(sc) || + (sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA)))) ath_rx_ps(sc, skb); ath_rx_send_to_mac80211(hw, sc, skb, rxs); -- cgit v1.2.2 From 556ae19110f2de5ace4733e0c19e5fa01fad08b3 Mon Sep 17 00:00:00 2001 From: Sarveshwar Bandi Date: Mon, 24 May 2010 18:38:25 -0700 Subject: be2net: Bug fix in init code in probe PCI function reset needs to invoked after fw init ioctl is issued. Signed-off-by: Sarveshwar Bandi Signed-off-by: David S. Miller --- drivers/net/benet/be_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 058d7f95f5ae..1c79c2009e40 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -2487,10 +2487,6 @@ static int __devinit be_probe(struct pci_dev *pdev, status = be_cmd_POST(adapter); if (status) goto ctrl_clean; - - status = be_cmd_reset_function(adapter); - if (status) - goto ctrl_clean; } /* tell fw we're ready to fire cmds */ @@ -2498,6 +2494,12 @@ static int __devinit be_probe(struct pci_dev *pdev, if (status) goto ctrl_clean; + if (be_physfn(adapter)) { + status = be_cmd_reset_function(adapter); + if (status) + goto ctrl_clean; + } + status = be_stats_init(adapter); if (status) goto ctrl_clean; -- cgit v1.2.2 From f16d3d57486cd079b29ae7a6c3b31c90e69c9c44 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Mon, 24 May 2010 07:02:25 +0000 Subject: macvlan: do proper cleanup in macvlan_common_newlink() V2 Fixes possible memory leak. Signed-off-by: Jiri Pirko Acked-by: Patrick McHardy Signed-off-by: David S. Miller --- drivers/net/macvlan.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c index 4e238afab4a3..87e8d4cb4057 100644 --- a/drivers/net/macvlan.c +++ b/drivers/net/macvlan.c @@ -634,11 +634,18 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev, err = register_netdevice(dev); if (err < 0) - return err; + goto destroy_port; list_add_tail(&vlan->list, &port->vlans); netif_stacked_transfer_operstate(lowerdev, dev); + return 0; + +destroy_port: + if (list_empty(&port->vlans)) + macvlan_port_destroy(lowerdev); + + return err; } EXPORT_SYMBOL_GPL(macvlan_common_newlink); -- cgit v1.2.2 From 26355387c21accb0919d34ee59478c23b2030ee5 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 24 May 2010 14:33:28 -0700 Subject: drivers: wireless: use new hex_to_bin() method Instead of using own implementation involve hex_to_bin() function. Signed-off-by: Andy Shevchenko Acked-by: John W. Linville Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/net/wireless/airo.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index a441aad922c2..3b7ab20a5c54 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -5162,13 +5162,6 @@ static void proc_SSID_on_close(struct inode *inode, struct file *file) enable_MAC(ai, 1); } -static inline u8 hexVal(char c) { - if (c>='0' && c<='9') return c -= '0'; - if (c>='a' && c<='f') return c -= 'a'-10; - if (c>='A' && c<='F') return c -= 'A'-10; - return 0; -} - static void proc_APList_on_close( struct inode *inode, struct file *file ) { struct proc_data *data = (struct proc_data *)file->private_data; struct proc_dir_entry *dp = PDE(inode); @@ -5188,11 +5181,11 @@ static void proc_APList_on_close( struct inode *inode, struct file *file ) { switch(j%3) { case 0: APList_rid.ap[i][j/3]= - hexVal(data->wbuffer[j+i*6*3])<<4; + hex_to_bin(data->wbuffer[j+i*6*3])<<4; break; case 1: APList_rid.ap[i][j/3]|= - hexVal(data->wbuffer[j+i*6*3]); + hex_to_bin(data->wbuffer[j+i*6*3]); break; } } @@ -5340,10 +5333,10 @@ static void proc_wepkey_on_close( struct inode *inode, struct file *file ) { for( i = 0; i < 16*3 && data->wbuffer[i+j]; i++ ) { switch(i%3) { case 0: - key[i/3] = hexVal(data->wbuffer[i+j])<<4; + key[i/3] = hex_to_bin(data->wbuffer[i+j])<<4; break; case 1: - key[i/3] |= hexVal(data->wbuffer[i+j]); + key[i/3] |= hex_to_bin(data->wbuffer[i+j]); break; } } -- cgit v1.2.2 From 774610e4f26cb3d9da14a8b5974324c9e51017bd Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 13 May 2010 20:37:24 +0200 Subject: ath9k: change beacon allocation to prefer the first beacon slot This fixes IBSS beacon transmissions without VEOL enabled Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index c8a4558f79ba..77face76e05f 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -274,17 +274,11 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif) avp->av_bslot = 0; for (slot = 0; slot < ATH_BCBUF; slot++) if (sc->beacon.bslot[slot] == NULL) { - /* - * XXX hack, space out slots to better - * deal with misses - */ - if (slot+1 < ATH_BCBUF && - sc->beacon.bslot[slot+1] == NULL) { - avp->av_bslot = slot+1; - break; - } avp->av_bslot = slot; + /* NB: keep looking for a double slot */ + if (slot == 0 || !sc->beacon.bslot[slot-1]) + break; } BUG_ON(sc->beacon.bslot[avp->av_bslot] != NULL); sc->beacon.bslot[avp->av_bslot] = vif; -- cgit v1.2.2 From a65e4cb402b5f3e120570ba1faca4354d47e8f2f Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 13 May 2010 20:37:25 +0200 Subject: ath9k: remove VEOL support for ad-hoc With VEOL, Beacon transmission in ad-hoc does not currently work. I believe for larger ad-hoc networks, VEOL is too unreliable, as it can get beacon transmissions stuck during synchronization. Use SWBA based beacon trasmission similar to AP mode instead. Signed-off-by: Felix Fietkau Acked-by: Benoit Papillault Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/beacon.c | 63 ++++++--------------------------- 1 file changed, 10 insertions(+), 53 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 77face76e05f..f43d85a302c4 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -76,22 +76,13 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ath_vif *avp, ds = bf->bf_desc; flags = ATH9K_TXDESC_NOACK; - if (((sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC) || - (sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT)) && - (ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) { - ds->ds_link = bf->bf_daddr; /* self-linked */ - flags |= ATH9K_TXDESC_VEOL; - /* Let hardware handle antenna switching. */ - antenna = 0; - } else { - ds->ds_link = 0; - /* - * Switch antenna every beacon. - * Should only switch every beacon period, not for every SWBA - * XXX assumes two antennae - */ - antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1); - } + ds->ds_link = 0; + /* + * Switch antenna every beacon. + * Should only switch every beacon period, not for every SWBA + * XXX assumes two antennae + */ + antenna = ((sc->beacon.ast_be_xmit / sc->nbcnvifs) & 1 ? 2 : 1); sband = &sc->sbands[common->hw->conf.channel->band]; rate = sband->bitrates[rateidx].hw_value; @@ -215,36 +206,6 @@ static struct ath_buf *ath_beacon_generate(struct ieee80211_hw *hw, return bf; } -/* - * Startup beacon transmission for adhoc mode when they are sent entirely - * by the hardware using the self-linked descriptor + veol trick. -*/ -static void ath_beacon_start_adhoc(struct ath_softc *sc, - struct ieee80211_vif *vif) -{ - struct ath_hw *ah = sc->sc_ah; - struct ath_common *common = ath9k_hw_common(ah); - struct ath_buf *bf; - struct ath_vif *avp; - struct sk_buff *skb; - - avp = (void *)vif->drv_priv; - - if (avp->av_bcbuf == NULL) - return; - - bf = avp->av_bcbuf; - skb = bf->bf_mpdu; - - ath_beacon_setup(sc, avp, bf, 0); - - /* NB: caller is known to have already stopped tx dma */ - ath9k_hw_puttxbuf(ah, sc->beacon.beaconq, bf->bf_daddr); - ath9k_hw_txstart(ah, sc->beacon.beaconq); - ath_print(common, ATH_DBG_BEACON, "TXDP%u = %llx (%p)\n", - sc->beacon.beaconq, ito64(bf->bf_daddr), bf->bf_desc); -} - int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif) { struct ath_softc *sc = aphy->sc; @@ -265,7 +226,8 @@ int ath_beacon_alloc(struct ath_wiphy *aphy, struct ieee80211_vif *vif) list_del(&avp->av_bcbuf->list); if (sc->sc_ah->opmode == NL80211_IFTYPE_AP || - !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) { + sc->sc_ah->opmode == NL80211_IFTYPE_ADHOC || + sc->sc_ah->opmode == NL80211_IFTYPE_MESH_POINT) { int slot; /* * Assign the vif to a beacon xmit slot. As @@ -715,8 +677,7 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc, * self-linked tx descriptor and let the hardware deal with things. */ intval |= ATH9K_BEACON_ENA; - if (!(ah->caps.hw_caps & ATH9K_HW_CAP_VEOL)) - ah->imask |= ATH9K_INT_SWBA; + ah->imask |= ATH9K_INT_SWBA; ath_beaconq_config(sc); @@ -726,10 +687,6 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc, ath9k_beacon_init(sc, nexttbtt, intval); sc->beacon.bmisscnt = 0; ath9k_hw_set_interrupts(ah, ah->imask); - - /* FIXME: Handle properly when vif is NULL */ - if (vif && ah->caps.hw_caps & ATH9K_HW_CAP_VEOL) - ath_beacon_start_adhoc(sc, vif); } void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif) -- cgit v1.2.2 From 578454ff7eab61d13a26b568f99a89a2c9edc881 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Thu, 20 May 2010 18:07:20 +0200 Subject: driver core: add devname module aliases to allow module on-demand auto-loading This adds: alias: devname: to some common kernel modules, which will allow the on-demand loading of the kernel module when the device node is accessed. Ideally all these modules would be compiled-in, but distros seems too much in love with their modularization that we need to cover the common cases with this new facility. It will allow us to remove a bunch of pretty useless init scripts and modprobes from init scripts. The static device node aliases will be carried in the module itself. The program depmod will extract this information to a file in the module directory: $ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname # Device nodes to trigger on-demand module loading. microcode cpu/microcode c10:184 fuse fuse c10:229 ppp_generic ppp c108:0 tun net/tun c10:200 dm_mod mapper/control c10:235 Udev will pick up the depmod created file on startup and create all the static device nodes which the kernel modules specify, so that these modules get automatically loaded when the device node is accessed: $ /sbin/udevd --debug ... static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184 static_dev_create_from_modules: mknod '/dev/fuse' c10:229 static_dev_create_from_modules: mknod '/dev/ppp' c108:0 static_dev_create_from_modules: mknod '/dev/net/tun' c10:200 static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235 udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666 udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666 A few device nodes are switched to statically allocated numbers, to allow the static nodes to work. This might also useful for systems which still run a plain static /dev, which is completely unsafe to use with any dynamic minor numbers. Note: The devname aliases must be limited to the *common* and *single*instance* device nodes, like the misc devices, and never be used for conceptually limited systems like the loop devices, which should rather get fixed properly and get a control node for losetup to talk to, instead of creating a random number of device nodes in advance, regardless if they are ever used. This facility is to hide the mess distros are creating with too modualized kernels, and just to hide that these modules are not compiled-in, and not to paper-over broken concepts. Thanks! :) Cc: Greg Kroah-Hartman Cc: David S. Miller Cc: Miklos Szeredi Cc: Chris Mason Cc: Alasdair G Kergon Cc: Tigran Aivazian Cc: Ian Kent Signed-Off-By: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/net/ppp_generic.c | 4 ++-- drivers/net/tun.c | 1 + 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 5441688daba7..c5f8eb102bf7 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -2926,5 +2926,5 @@ EXPORT_SYMBOL(ppp_output_wakeup); EXPORT_SYMBOL(ppp_register_compressor); EXPORT_SYMBOL(ppp_unregister_compressor); MODULE_LICENSE("GPL"); -MODULE_ALIAS_CHARDEV_MAJOR(PPP_MAJOR); -MODULE_ALIAS("/dev/ppp"); +MODULE_ALIAS_CHARDEV(PPP_MAJOR, 0); +MODULE_ALIAS("devname:ppp"); diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 97b25533e5fb..005cad689578 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1649,3 +1649,4 @@ MODULE_DESCRIPTION(DRV_DESCRIPTION); MODULE_AUTHOR(DRV_COPYRIGHT); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(TUN_MINOR); +MODULE_ALIAS("devname:net/tun"); -- cgit v1.2.2 From dd7496f217462a23a9a8a15b9925866eaad76e22 Mon Sep 17 00:00:00 2001 From: Filip Aben Date: Tue, 25 May 2010 16:09:23 -0700 Subject: hso: add support for new products This patch adds a few new product id's for the hso driver. Signed-off-by: Filip Aben Signed-off-by: David S. Miller --- drivers/net/usb/hso.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 9964df199511..0a3c41faea9c 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -475,6 +475,9 @@ static const struct usb_device_id hso_ids[] = { {USB_DEVICE(0x0af0, 0x8302)}, {USB_DEVICE(0x0af0, 0x8304)}, {USB_DEVICE(0x0af0, 0x8400)}, + {USB_DEVICE(0x0af0, 0x8600)}, + {USB_DEVICE(0x0af0, 0x8800)}, + {USB_DEVICE(0x0af0, 0x8900)}, {USB_DEVICE(0x0af0, 0xd035)}, {USB_DEVICE(0x0af0, 0xd055)}, {USB_DEVICE(0x0af0, 0xd155)}, -- cgit v1.2.2 From dd131e76e562fa0c6f9dd53130e8d08d39a0b62c Mon Sep 17 00:00:00 2001 From: Sarveshwar Bandi Date: Tue, 25 May 2010 16:16:32 -0700 Subject: be2net: Bug fix to avoid disabling bottom half during firmware upgrade. Certain firmware commands/operations to upgrade firmware could take several seconds to complete. The code presently disables bottom half during these operations which could lead to unpredictable behaviour in certain cases. This patch now does all firmware upgrade operations asynchronously using a completion variable. Signed-off-by: Sarveshwar Bandi Signed-off-by: David S. Miller --- drivers/net/benet/be.h | 2 ++ drivers/net/benet/be_cmds.c | 19 +++++++++++++++++-- drivers/net/benet/be_main.c | 1 + 3 files changed, 20 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h index 373c1a563474..b46be490cd2a 100644 --- a/drivers/net/benet/be.h +++ b/drivers/net/benet/be.h @@ -283,6 +283,8 @@ struct be_adapter { u8 port_type; u8 transceiver; u8 generation; /* BladeEngine ASIC generation */ + u32 flash_status; + struct completion flash_compl; bool sriov_enabled; u32 vf_if_handle[BE_MAX_VF]; diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index e79bf8b9af3b..c911bfb55b19 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -59,6 +59,13 @@ static int be_mcc_compl_process(struct be_adapter *adapter, compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) & CQE_STATUS_COMPL_MASK; + + if ((compl->tag0 == OPCODE_COMMON_WRITE_FLASHROM) && + (compl->tag1 == CMD_SUBSYSTEM_COMMON)) { + adapter->flash_status = compl_status; + complete(&adapter->flash_compl); + } + if (compl_status == MCC_STATUS_SUCCESS) { if (compl->tag0 == OPCODE_ETH_GET_STATISTICS) { struct be_cmd_resp_get_stats *resp = @@ -1417,6 +1424,7 @@ int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd, int status; spin_lock_bh(&adapter->mcc_lock); + adapter->flash_status = 0; wrb = wrb_from_mccq(adapter); if (!wrb) { @@ -1428,6 +1436,7 @@ int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd, be_wrb_hdr_prepare(wrb, cmd->size, false, 1, OPCODE_COMMON_WRITE_FLASHROM); + wrb->tag1 = CMD_SUBSYSTEM_COMMON; be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, OPCODE_COMMON_WRITE_FLASHROM, cmd->size); @@ -1439,10 +1448,16 @@ int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd, req->params.op_code = cpu_to_le32(flash_opcode); req->params.data_buf_size = cpu_to_le32(buf_size); - status = be_mcc_notify_wait(adapter); + be_mcc_notify(adapter); + spin_unlock_bh(&adapter->mcc_lock); + + if (!wait_for_completion_timeout(&adapter->flash_compl, + msecs_to_jiffies(12000))) + status = -1; + else + status = adapter->flash_status; err: - spin_unlock_bh(&adapter->mcc_lock); return status; } diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index 1c79c2009e40..aa065c71ddd8 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -2319,6 +2319,7 @@ static int be_ctrl_init(struct be_adapter *adapter) spin_lock_init(&adapter->mcc_lock); spin_lock_init(&adapter->mcc_cq_lock); + init_completion(&adapter->flash_compl); pci_save_state(adapter->pdev); return 0; -- cgit v1.2.2 From f925b1303e0672effc78547353bd2ddfe11f5b5f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 25 May 2010 16:24:03 -0700 Subject: drivers/net/usb/asix.c: Fix pointer cast. Stephen Rothwell reports the following new warning: drivers/net/usb/asix.c: In function 'asix_rx_fixup': drivers/net/usb/asix.c:325: warning: cast from pointer to integer of different size drivers/net/usb/asix.c:354: warning: cast from pointer to integer of different size The code just cares about the low alignment bits, so use an "unsigned long" cast instead of one to "u32". Signed-off-by: David S. Miller --- drivers/net/usb/asix.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 31b73310ec77..1f802e90474c 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -322,7 +322,7 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) size = (u16) (header & 0x0000ffff); if ((skb->len) - ((size + 1) & 0xfffe) == 0) { - u8 alignment = (u32)skb->data & 0x3; + u8 alignment = (unsigned long)skb->data & 0x3; if (alignment != 0x2) { /* * not 16bit aligned so use the room provided by @@ -351,7 +351,7 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) } ax_skb = skb_clone(skb, GFP_ATOMIC); if (ax_skb) { - u8 alignment = (u32)packet & 0x3; + u8 alignment = (unsigned long)packet & 0x3; ax_skb->len = size; if (alignment != 0x2) { -- cgit v1.2.2 From d938a702e5ce8909ea68be97566150507bfea4df Mon Sep 17 00:00:00 2001 From: Sathya Perla Date: Wed, 26 May 2010 00:33:43 -0700 Subject: be2net: increase POST timeout for EEH recovery Sometimes BE requires longer time for POST completion after an EEH reset. Increasing the timeout value accordingly. Signed-off-by: Sathya Perla Signed-off-by: David S. Miller --- drivers/net/benet/be_cmds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index c911bfb55b19..9d11dbf5e4da 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -294,7 +294,7 @@ int be_cmd_POST(struct be_adapter *adapter) } else { return 0; } - } while (timeout < 20); + } while (timeout < 40); dev_err(&adapter->pdev->dev, "POST timeout; stage=0x%x\n", stage); return -1; -- cgit v1.2.2 From 755fae0ac41672523a3ac00d41fe9bac226b0578 Mon Sep 17 00:00:00 2001 From: Brian Hill Date: Wed, 26 May 2010 20:42:18 -0700 Subject: net: ll_temac: fix interrupt bug when interrupt 0 is used The code is not checking the interrupt for DMA correctly so that an interrupt number of 0 will cause a false error. Signed-off-by: Brian Hill Signed-off-by: John Linn Signed-off-by: David S. Miller --- drivers/net/ll_temac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c index b59b24d667f0..1bb6e605f64f 100644 --- a/drivers/net/ll_temac_main.c +++ b/drivers/net/ll_temac_main.c @@ -950,7 +950,7 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) lp->rx_irq = irq_of_parse_and_map(np, 0); lp->tx_irq = irq_of_parse_and_map(np, 1); - if (!lp->rx_irq || !lp->tx_irq) { + if ((lp->rx_irq == NO_IRQ) || (lp->tx_irq == NO_IRQ)) { dev_err(&op->dev, "could not determine irqs\n"); rc = -ENOMEM; goto nodev; -- cgit v1.2.2 From 23ecc4bde21f0ccb38f4b53cadde7fc5d67d68e3 Mon Sep 17 00:00:00 2001 From: Brian Hill Date: Wed, 26 May 2010 20:44:30 -0700 Subject: net: ll_temac: fix checksum offload logic The current checksum offload code does not work and this corrects that functionality. It also updates the interrupt coallescing initialization so than there are fewer interrupts and performance is increased. Signed-off-by: Brian Hill Signed-off-by: John Linn Signed-off-by: David S. Miller --- drivers/net/ll_temac.h | 5 +++ drivers/net/ll_temac_main.c | 82 ++++++++++++++++++++++++++++++++------------- 2 files changed, 63 insertions(+), 24 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ll_temac.h b/drivers/net/ll_temac.h index c03358434acb..522abe2ff25a 100644 --- a/drivers/net/ll_temac.h +++ b/drivers/net/ll_temac.h @@ -295,6 +295,10 @@ This option defaults to enabled (set) */ #define MULTICAST_CAM_TABLE_NUM 4 +/* TEMAC Synthesis features */ +#define TEMAC_FEATURE_RX_CSUM (1 << 0) +#define TEMAC_FEATURE_TX_CSUM (1 << 1) + /* TX/RX CURDESC_PTR points to first descriptor */ /* TX/RX TAILDESC_PTR points to last descriptor in linked list */ @@ -353,6 +357,7 @@ struct temac_local { struct mutex indirect_mutex; u32 options; /* Current options word */ int last_link; + unsigned int temac_features; /* Buffer descriptors */ struct cdmac_bd *tx_bd_v; diff --git a/drivers/net/ll_temac_main.c b/drivers/net/ll_temac_main.c index 1bb6e605f64f..fbd07de2e088 100644 --- a/drivers/net/ll_temac_main.c +++ b/drivers/net/ll_temac_main.c @@ -245,7 +245,7 @@ static int temac_dma_bd_init(struct net_device *ndev) CHNL_CTRL_IRQ_COAL_EN); /* 0x10220483 */ /* 0x00100483 */ - lp->dma_out(lp, RX_CHNL_CTRL, 0xff010000 | + lp->dma_out(lp, RX_CHNL_CTRL, 0xff070000 | CHNL_CTRL_IRQ_EN | CHNL_CTRL_IRQ_DLY_EN | CHNL_CTRL_IRQ_COAL_EN | @@ -574,6 +574,10 @@ static void temac_start_xmit_done(struct net_device *ndev) if (cur_p->app4) dev_kfree_skb_irq((struct sk_buff *)cur_p->app4); cur_p->app0 = 0; + cur_p->app1 = 0; + cur_p->app2 = 0; + cur_p->app3 = 0; + cur_p->app4 = 0; ndev->stats.tx_packets++; ndev->stats.tx_bytes += cur_p->len; @@ -589,6 +593,29 @@ static void temac_start_xmit_done(struct net_device *ndev) netif_wake_queue(ndev); } +static inline int temac_check_tx_bd_space(struct temac_local *lp, int num_frag) +{ + struct cdmac_bd *cur_p; + int tail; + + tail = lp->tx_bd_tail; + cur_p = &lp->tx_bd_v[tail]; + + do { + if (cur_p->app0) + return NETDEV_TX_BUSY; + + tail++; + if (tail >= TX_BD_NUM) + tail = 0; + + cur_p = &lp->tx_bd_v[tail]; + num_frag--; + } while (num_frag >= 0); + + return 0; +} + static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev) { struct temac_local *lp = netdev_priv(ndev); @@ -603,7 +630,7 @@ static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev) start_p = lp->tx_bd_p + sizeof(*lp->tx_bd_v) * lp->tx_bd_tail; cur_p = &lp->tx_bd_v[lp->tx_bd_tail]; - if (cur_p->app0 & STS_CTRL_APP0_CMPLT) { + if (temac_check_tx_bd_space(lp, num_frag)) { if (!netif_queue_stopped(ndev)) { netif_stop_queue(ndev); return NETDEV_TX_BUSY; @@ -613,29 +640,14 @@ static int temac_start_xmit(struct sk_buff *skb, struct net_device *ndev) cur_p->app0 = 0; if (skb->ip_summed == CHECKSUM_PARTIAL) { - const struct iphdr *ip = ip_hdr(skb); - int length = 0, start = 0, insert = 0; - - switch (ip->protocol) { - case IPPROTO_TCP: - start = sizeof(struct iphdr) + ETH_HLEN; - insert = sizeof(struct iphdr) + ETH_HLEN + 16; - length = ip->tot_len - sizeof(struct iphdr); - break; - case IPPROTO_UDP: - start = sizeof(struct iphdr) + ETH_HLEN; - insert = sizeof(struct iphdr) + ETH_HLEN + 6; - length = ip->tot_len - sizeof(struct iphdr); - break; - default: - break; - } - cur_p->app1 = ((start << 16) | insert); - cur_p->app2 = csum_tcpudp_magic(ip->saddr, ip->daddr, - length, ip->protocol, 0); - skb->data[insert] = 0; - skb->data[insert + 1] = 0; + unsigned int csum_start_off = skb_transport_offset(skb); + unsigned int csum_index_off = csum_start_off + skb->csum_offset; + + cur_p->app0 |= 1; /* TX Checksum Enabled */ + cur_p->app1 = (csum_start_off << 16) | csum_index_off; + cur_p->app2 = 0; /* initial checksum seed */ } + cur_p->app0 |= STS_CTRL_APP0_SOP; cur_p->len = skb_headlen(skb); cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, skb->len, @@ -699,6 +711,15 @@ static void ll_temac_recv(struct net_device *ndev) skb->protocol = eth_type_trans(skb, ndev); skb->ip_summed = CHECKSUM_NONE; + /* if we're doing rx csum offload, set it up */ + if (((lp->temac_features & TEMAC_FEATURE_RX_CSUM) != 0) && + (skb->protocol == __constant_htons(ETH_P_IP)) && + (skb->len > 64)) { + + skb->csum = cur_p->app3 & 0xFFFF; + skb->ip_summed = CHECKSUM_COMPLETE; + } + netif_rx(skb); ndev->stats.rx_packets++; @@ -883,6 +904,7 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) struct temac_local *lp; struct net_device *ndev; const void *addr; + __be32 *p; int size, rc = 0; /* Init network device structure */ @@ -926,6 +948,18 @@ temac_of_probe(struct of_device *op, const struct of_device_id *match) goto nodev; } + /* Setup checksum offload, but default to off if not specified */ + lp->temac_features = 0; + p = (__be32 *)of_get_property(op->dev.of_node, "xlnx,txcsum", NULL); + if (p && be32_to_cpu(*p)) { + lp->temac_features |= TEMAC_FEATURE_TX_CSUM; + /* Can checksum TCP/UDP over IPv4. */ + ndev->features |= NETIF_F_IP_CSUM; + } + p = (__be32 *)of_get_property(op->dev.of_node, "xlnx,rxcsum", NULL); + if (p && be32_to_cpu(*p)) + lp->temac_features |= TEMAC_FEATURE_RX_CSUM; + /* Find the DMA node, map the DMA registers, and decode the DMA IRQs */ np = of_parse_phandle(op->node, "llink-connected", 0); if (!np) { -- cgit v1.2.2 From 631eb227849e3bfdec2d2e628ee5a3f962db82e2 Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Mon, 29 Mar 2010 09:58:51 -0700 Subject: can: Add support for Janz VMOD-ICAN3 Intelligent CAN module The Janz VMOD-ICAN3 is a MODULbus daughterboard which fits onto any MODULbus carrier board. It is an intelligent CAN controller with a microcontroller and associated firmware. Signed-off-by: Ira W. Snyder Acked-by: Wolfgang Grandegger Acked-by: David S. Miller Signed-off-by: Samuel Ortiz --- drivers/net/can/Kconfig | 10 + drivers/net/can/Makefile | 1 + drivers/net/can/janz-ican3.c | 1830 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 1841 insertions(+) create mode 100644 drivers/net/can/janz-ican3.c (limited to 'drivers/net') diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index 05b751719bd5..2c5227c02fa0 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -63,6 +63,16 @@ config CAN_BFIN To compile this driver as a module, choose M here: the module will be called bfin_can. +config CAN_JANZ_ICAN3 + tristate "Janz VMOD-ICAN3 Intelligent CAN controller" + depends on CAN_DEV && MFD_JANZ_CMODIO + ---help--- + Driver for Janz VMOD-ICAN3 Intelligent CAN controller module, which + connects to a MODULbus carrier board. + + This driver can also be built as a module. If so, the module will be + called janz-ican3.ko. + source "drivers/net/can/mscan/Kconfig" source "drivers/net/can/sja1000/Kconfig" diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile index 7a702f28d01c..9047cd066fea 100644 --- a/drivers/net/can/Makefile +++ b/drivers/net/can/Makefile @@ -15,5 +15,6 @@ obj-$(CONFIG_CAN_AT91) += at91_can.o obj-$(CONFIG_CAN_TI_HECC) += ti_hecc.o obj-$(CONFIG_CAN_MCP251X) += mcp251x.o obj-$(CONFIG_CAN_BFIN) += bfin_can.o +obj-$(CONFIG_CAN_JANZ_ICAN3) += janz-ican3.o ccflags-$(CONFIG_CAN_DEBUG_DEVICES) := -DDEBUG diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c new file mode 100644 index 000000000000..6e533dcc36c0 --- /dev/null +++ b/drivers/net/can/janz-ican3.c @@ -0,0 +1,1830 @@ +/* + * Janz MODULbus VMOD-ICAN3 CAN Interface Driver + * + * Copyright (c) 2010 Ira W. Snyder + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +/* the DPM has 64k of memory, organized into 256x 256 byte pages */ +#define DPM_NUM_PAGES 256 +#define DPM_PAGE_SIZE 256 +#define DPM_PAGE_ADDR(p) ((p) * DPM_PAGE_SIZE) + +/* JANZ ICAN3 "old-style" host interface queue page numbers */ +#define QUEUE_OLD_CONTROL 0 +#define QUEUE_OLD_RB0 1 +#define QUEUE_OLD_RB1 2 +#define QUEUE_OLD_WB0 3 +#define QUEUE_OLD_WB1 4 + +/* Janz ICAN3 "old-style" host interface control registers */ +#define MSYNC_PEER 0x00 /* ICAN only */ +#define MSYNC_LOCL 0x01 /* host only */ +#define TARGET_RUNNING 0x02 + +#define MSYNC_RB0 0x01 +#define MSYNC_RB1 0x02 +#define MSYNC_RBLW 0x04 +#define MSYNC_RB_MASK (MSYNC_RB0 | MSYNC_RB1) + +#define MSYNC_WB0 0x10 +#define MSYNC_WB1 0x20 +#define MSYNC_WBLW 0x40 +#define MSYNC_WB_MASK (MSYNC_WB0 | MSYNC_WB1) + +/* Janz ICAN3 "new-style" host interface queue page numbers */ +#define QUEUE_TOHOST 5 +#define QUEUE_FROMHOST_MID 6 +#define QUEUE_FROMHOST_HIGH 7 +#define QUEUE_FROMHOST_LOW 8 + +/* The first free page in the DPM is #9 */ +#define DPM_FREE_START 9 + +/* Janz ICAN3 "new-style" and "fast" host interface descriptor flags */ +#define DESC_VALID 0x80 +#define DESC_WRAP 0x40 +#define DESC_INTERRUPT 0x20 +#define DESC_IVALID 0x10 +#define DESC_LEN(len) (len) + +/* Janz ICAN3 Firmware Messages */ +#define MSG_CONNECTI 0x02 +#define MSG_DISCONNECT 0x03 +#define MSG_IDVERS 0x04 +#define MSG_MSGLOST 0x05 +#define MSG_NEWHOSTIF 0x08 +#define MSG_INQUIRY 0x0a +#define MSG_SETAFILMASK 0x10 +#define MSG_INITFDPMQUEUE 0x11 +#define MSG_HWCONF 0x12 +#define MSG_FMSGLOST 0x15 +#define MSG_CEVTIND 0x37 +#define MSG_CBTRREQ 0x41 +#define MSG_COFFREQ 0x42 +#define MSG_CONREQ 0x43 +#define MSG_CCONFREQ 0x47 + +/* + * Janz ICAN3 CAN Inquiry Message Types + * + * NOTE: there appears to be a firmware bug here. You must send + * NOTE: INQUIRY_STATUS and expect to receive an INQUIRY_EXTENDED + * NOTE: response. The controller never responds to a message with + * NOTE: the INQUIRY_EXTENDED subspec :( + */ +#define INQUIRY_STATUS 0x00 +#define INQUIRY_TERMINATION 0x01 +#define INQUIRY_EXTENDED 0x04 + +/* Janz ICAN3 CAN Set Acceptance Filter Mask Message Types */ +#define SETAFILMASK_REJECT 0x00 +#define SETAFILMASK_FASTIF 0x02 + +/* Janz ICAN3 CAN Hardware Configuration Message Types */ +#define HWCONF_TERMINATE_ON 0x01 +#define HWCONF_TERMINATE_OFF 0x00 + +/* Janz ICAN3 CAN Event Indication Message Types */ +#define CEVTIND_EI 0x01 +#define CEVTIND_DOI 0x02 +#define CEVTIND_LOST 0x04 +#define CEVTIND_FULL 0x08 +#define CEVTIND_BEI 0x10 + +#define CEVTIND_CHIP_SJA1000 0x02 + +#define ICAN3_BUSERR_QUOTA_MAX 255 + +/* Janz ICAN3 CAN Frame Conversion */ +#define ICAN3_ECHO 0x10 +#define ICAN3_EFF_RTR 0x40 +#define ICAN3_SFF_RTR 0x10 +#define ICAN3_EFF 0x80 + +#define ICAN3_CAN_TYPE_MASK 0x0f +#define ICAN3_CAN_TYPE_SFF 0x00 +#define ICAN3_CAN_TYPE_EFF 0x01 + +#define ICAN3_CAN_DLC_MASK 0x0f + +/* + * SJA1000 Status and Error Register Definitions + * + * Copied from drivers/net/can/sja1000/sja1000.h + */ + +/* status register content */ +#define SR_BS 0x80 +#define SR_ES 0x40 +#define SR_TS 0x20 +#define SR_RS 0x10 +#define SR_TCS 0x08 +#define SR_TBS 0x04 +#define SR_DOS 0x02 +#define SR_RBS 0x01 + +#define SR_CRIT (SR_BS|SR_ES) + +/* ECC register */ +#define ECC_SEG 0x1F +#define ECC_DIR 0x20 +#define ECC_ERR 6 +#define ECC_BIT 0x00 +#define ECC_FORM 0x40 +#define ECC_STUFF 0x80 +#define ECC_MASK 0xc0 + +/* Number of buffers for use in the "new-style" host interface */ +#define ICAN3_NEW_BUFFERS 16 + +/* Number of buffers for use in the "fast" host interface */ +#define ICAN3_TX_BUFFERS 512 +#define ICAN3_RX_BUFFERS 1024 + +/* SJA1000 Clock Input */ +#define ICAN3_CAN_CLOCK 8000000 + +/* Driver Name */ +#define DRV_NAME "janz-ican3" + +/* DPM Control Registers -- starts at offset 0x100 in the MODULbus registers */ +struct ican3_dpm_control { + /* window address register */ + u8 window_address; + u8 unused1; + + /* + * Read access: clear interrupt from microcontroller + * Write access: send interrupt to microcontroller + */ + u8 interrupt; + u8 unused2; + + /* write-only: reset all hardware on the module */ + u8 hwreset; + u8 unused3; + + /* write-only: generate an interrupt to the TPU */ + u8 tpuinterrupt; +}; + +struct ican3_dev { + + /* must be the first member */ + struct can_priv can; + + /* CAN network device */ + struct net_device *ndev; + struct napi_struct napi; + + /* Device for printing */ + struct device *dev; + + /* module number */ + unsigned int num; + + /* base address of registers and IRQ */ + struct janz_cmodio_onboard_regs __iomem *ctrl; + struct ican3_dpm_control __iomem *dpmctrl; + void __iomem *dpm; + int irq; + + /* CAN bus termination status */ + struct completion termination_comp; + bool termination_enabled; + + /* CAN bus error status registers */ + struct completion buserror_comp; + struct can_berr_counter bec; + + /* old and new style host interface */ + unsigned int iftype; + + /* + * Any function which changes the current DPM page must hold this + * lock while it is performing data accesses. This ensures that the + * function will not be preempted and end up reading data from a + * different DPM page than it expects. + */ + spinlock_t lock; + + /* new host interface */ + unsigned int rx_int; + unsigned int rx_num; + unsigned int tx_num; + + /* fast host interface */ + unsigned int fastrx_start; + unsigned int fastrx_int; + unsigned int fastrx_num; + unsigned int fasttx_start; + unsigned int fasttx_num; + + /* first free DPM page */ + unsigned int free_page; +}; + +struct ican3_msg { + u8 control; + u8 spec; + __le16 len; + u8 data[252]; +}; + +struct ican3_new_desc { + u8 control; + u8 pointer; +}; + +struct ican3_fast_desc { + u8 control; + u8 command; + u8 data[14]; +}; + +/* write to the window basic address register */ +static inline void ican3_set_page(struct ican3_dev *mod, unsigned int page) +{ + BUG_ON(page >= DPM_NUM_PAGES); + iowrite8(page, &mod->dpmctrl->window_address); +} + +/* + * ICAN3 "old-style" host interface + */ + +/* + * Recieve a message from the ICAN3 "old-style" firmware interface + * + * LOCKING: must hold mod->lock + * + * returns 0 on success, -ENOMEM when no message exists + */ +static int ican3_old_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + unsigned int mbox, mbox_page; + u8 locl, peer, xord; + + /* get the MSYNC registers */ + ican3_set_page(mod, QUEUE_OLD_CONTROL); + peer = ioread8(mod->dpm + MSYNC_PEER); + locl = ioread8(mod->dpm + MSYNC_LOCL); + xord = locl ^ peer; + + if ((xord & MSYNC_RB_MASK) == 0x00) { + dev_dbg(mod->dev, "no mbox for reading\n"); + return -ENOMEM; + } + + /* find the first free mbox to read */ + if ((xord & MSYNC_RB_MASK) == MSYNC_RB_MASK) + mbox = (xord & MSYNC_RBLW) ? MSYNC_RB0 : MSYNC_RB1; + else + mbox = (xord & MSYNC_RB0) ? MSYNC_RB0 : MSYNC_RB1; + + /* copy the message */ + mbox_page = (mbox == MSYNC_RB0) ? QUEUE_OLD_RB0 : QUEUE_OLD_RB1; + ican3_set_page(mod, mbox_page); + memcpy_fromio(msg, mod->dpm, sizeof(*msg)); + + /* + * notify the firmware that the read buffer is available + * for it to fill again + */ + locl ^= mbox; + + ican3_set_page(mod, QUEUE_OLD_CONTROL); + iowrite8(locl, mod->dpm + MSYNC_LOCL); + return 0; +} + +/* + * Send a message through the "old-style" firmware interface + * + * LOCKING: must hold mod->lock + * + * returns 0 on success, -ENOMEM when no free space exists + */ +static int ican3_old_send_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + unsigned int mbox, mbox_page; + u8 locl, peer, xord; + + /* get the MSYNC registers */ + ican3_set_page(mod, QUEUE_OLD_CONTROL); + peer = ioread8(mod->dpm + MSYNC_PEER); + locl = ioread8(mod->dpm + MSYNC_LOCL); + xord = locl ^ peer; + + if ((xord & MSYNC_WB_MASK) == MSYNC_WB_MASK) { + dev_err(mod->dev, "no mbox for writing\n"); + return -ENOMEM; + } + + /* calculate a free mbox to use */ + mbox = (xord & MSYNC_WB0) ? MSYNC_WB1 : MSYNC_WB0; + + /* copy the message to the DPM */ + mbox_page = (mbox == MSYNC_WB0) ? QUEUE_OLD_WB0 : QUEUE_OLD_WB1; + ican3_set_page(mod, mbox_page); + memcpy_toio(mod->dpm, msg, sizeof(*msg)); + + locl ^= mbox; + if (mbox == MSYNC_WB1) + locl |= MSYNC_WBLW; + + ican3_set_page(mod, QUEUE_OLD_CONTROL); + iowrite8(locl, mod->dpm + MSYNC_LOCL); + return 0; +} + +/* + * ICAN3 "new-style" Host Interface Setup + */ + +static void __devinit ican3_init_new_host_interface(struct ican3_dev *mod) +{ + struct ican3_new_desc desc; + unsigned long flags; + void __iomem *dst; + int i; + + spin_lock_irqsave(&mod->lock, flags); + + /* setup the internal datastructures for RX */ + mod->rx_num = 0; + mod->rx_int = 0; + + /* tohost queue descriptors are in page 5 */ + ican3_set_page(mod, QUEUE_TOHOST); + dst = mod->dpm; + + /* initialize the tohost (rx) queue descriptors: pages 9-24 */ + for (i = 0; i < ICAN3_NEW_BUFFERS; i++) { + desc.control = DESC_INTERRUPT | DESC_LEN(1); /* I L=1 */ + desc.pointer = mod->free_page; + + /* set wrap flag on last buffer */ + if (i == ICAN3_NEW_BUFFERS - 1) + desc.control |= DESC_WRAP; + + memcpy_toio(dst, &desc, sizeof(desc)); + dst += sizeof(desc); + mod->free_page++; + } + + /* fromhost (tx) mid queue descriptors are in page 6 */ + ican3_set_page(mod, QUEUE_FROMHOST_MID); + dst = mod->dpm; + + /* setup the internal datastructures for TX */ + mod->tx_num = 0; + + /* initialize the fromhost mid queue descriptors: pages 25-40 */ + for (i = 0; i < ICAN3_NEW_BUFFERS; i++) { + desc.control = DESC_VALID | DESC_LEN(1); /* V L=1 */ + desc.pointer = mod->free_page; + + /* set wrap flag on last buffer */ + if (i == ICAN3_NEW_BUFFERS - 1) + desc.control |= DESC_WRAP; + + memcpy_toio(dst, &desc, sizeof(desc)); + dst += sizeof(desc); + mod->free_page++; + } + + /* fromhost hi queue descriptors are in page 7 */ + ican3_set_page(mod, QUEUE_FROMHOST_HIGH); + dst = mod->dpm; + + /* initialize only a single buffer in the fromhost hi queue (unused) */ + desc.control = DESC_VALID | DESC_WRAP | DESC_LEN(1); /* VW L=1 */ + desc.pointer = mod->free_page; + memcpy_toio(dst, &desc, sizeof(desc)); + mod->free_page++; + + /* fromhost low queue descriptors are in page 8 */ + ican3_set_page(mod, QUEUE_FROMHOST_LOW); + dst = mod->dpm; + + /* initialize only a single buffer in the fromhost low queue (unused) */ + desc.control = DESC_VALID | DESC_WRAP | DESC_LEN(1); /* VW L=1 */ + desc.pointer = mod->free_page; + memcpy_toio(dst, &desc, sizeof(desc)); + mod->free_page++; + + spin_unlock_irqrestore(&mod->lock, flags); +} + +/* + * ICAN3 Fast Host Interface Setup + */ + +static void __devinit ican3_init_fast_host_interface(struct ican3_dev *mod) +{ + struct ican3_fast_desc desc; + unsigned long flags; + unsigned int addr; + void __iomem *dst; + int i; + + spin_lock_irqsave(&mod->lock, flags); + + /* save the start recv page */ + mod->fastrx_start = mod->free_page; + mod->fastrx_num = 0; + mod->fastrx_int = 0; + + /* build a single fast tohost queue descriptor */ + memset(&desc, 0, sizeof(desc)); + desc.control = 0x00; + desc.command = 1; + + /* build the tohost queue descriptor ring in memory */ + addr = 0; + for (i = 0; i < ICAN3_RX_BUFFERS; i++) { + + /* set the wrap bit on the last buffer */ + if (i == ICAN3_RX_BUFFERS - 1) + desc.control |= DESC_WRAP; + + /* switch to the correct page */ + ican3_set_page(mod, mod->free_page); + + /* copy the descriptor to the DPM */ + dst = mod->dpm + addr; + memcpy_toio(dst, &desc, sizeof(desc)); + addr += sizeof(desc); + + /* move to the next page if necessary */ + if (addr >= DPM_PAGE_SIZE) { + addr = 0; + mod->free_page++; + } + } + + /* make sure we page-align the next queue */ + if (addr != 0) + mod->free_page++; + + /* save the start xmit page */ + mod->fasttx_start = mod->free_page; + mod->fasttx_num = 0; + + /* build a single fast fromhost queue descriptor */ + memset(&desc, 0, sizeof(desc)); + desc.control = DESC_VALID; + desc.command = 1; + + /* build the fromhost queue descriptor ring in memory */ + addr = 0; + for (i = 0; i < ICAN3_TX_BUFFERS; i++) { + + /* set the wrap bit on the last buffer */ + if (i == ICAN3_TX_BUFFERS - 1) + desc.control |= DESC_WRAP; + + /* switch to the correct page */ + ican3_set_page(mod, mod->free_page); + + /* copy the descriptor to the DPM */ + dst = mod->dpm + addr; + memcpy_toio(dst, &desc, sizeof(desc)); + addr += sizeof(desc); + + /* move to the next page if necessary */ + if (addr >= DPM_PAGE_SIZE) { + addr = 0; + mod->free_page++; + } + } + + spin_unlock_irqrestore(&mod->lock, flags); +} + +/* + * ICAN3 "new-style" Host Interface Message Helpers + */ + +/* + * LOCKING: must hold mod->lock + */ +static int ican3_new_send_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + struct ican3_new_desc desc; + void __iomem *desc_addr = mod->dpm + (mod->tx_num * sizeof(desc)); + + /* switch to the fromhost mid queue, and read the buffer descriptor */ + ican3_set_page(mod, QUEUE_FROMHOST_MID); + memcpy_fromio(&desc, desc_addr, sizeof(desc)); + + if (!(desc.control & DESC_VALID)) { + dev_dbg(mod->dev, "%s: no free buffers\n", __func__); + return -ENOMEM; + } + + /* switch to the data page, copy the data */ + ican3_set_page(mod, desc.pointer); + memcpy_toio(mod->dpm, msg, sizeof(*msg)); + + /* switch back to the descriptor, set the valid bit, write it back */ + ican3_set_page(mod, QUEUE_FROMHOST_MID); + desc.control ^= DESC_VALID; + memcpy_toio(desc_addr, &desc, sizeof(desc)); + + /* update the tx number */ + mod->tx_num = (desc.control & DESC_WRAP) ? 0 : (mod->tx_num + 1); + return 0; +} + +/* + * LOCKING: must hold mod->lock + */ +static int ican3_new_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + struct ican3_new_desc desc; + void __iomem *desc_addr = mod->dpm + (mod->rx_num * sizeof(desc)); + + /* switch to the tohost queue, and read the buffer descriptor */ + ican3_set_page(mod, QUEUE_TOHOST); + memcpy_fromio(&desc, desc_addr, sizeof(desc)); + + if (!(desc.control & DESC_VALID)) { + dev_dbg(mod->dev, "%s: no buffers to recv\n", __func__); + return -ENOMEM; + } + + /* switch to the data page, copy the data */ + ican3_set_page(mod, desc.pointer); + memcpy_fromio(msg, mod->dpm, sizeof(*msg)); + + /* switch back to the descriptor, toggle the valid bit, write it back */ + ican3_set_page(mod, QUEUE_TOHOST); + desc.control ^= DESC_VALID; + memcpy_toio(desc_addr, &desc, sizeof(desc)); + + /* update the rx number */ + mod->rx_num = (desc.control & DESC_WRAP) ? 0 : (mod->rx_num + 1); + return 0; +} + +/* + * Message Send / Recv Helpers + */ + +static int ican3_send_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&mod->lock, flags); + + if (mod->iftype == 0) + ret = ican3_old_send_msg(mod, msg); + else + ret = ican3_new_send_msg(mod, msg); + + spin_unlock_irqrestore(&mod->lock, flags); + return ret; +} + +static int ican3_recv_msg(struct ican3_dev *mod, struct ican3_msg *msg) +{ + unsigned long flags; + int ret; + + spin_lock_irqsave(&mod->lock, flags); + + if (mod->iftype == 0) + ret = ican3_old_recv_msg(mod, msg); + else + ret = ican3_new_recv_msg(mod, msg); + + spin_unlock_irqrestore(&mod->lock, flags); + return ret; +} + +/* + * Quick Pre-constructed Messages + */ + +static int __devinit ican3_msg_connect(struct ican3_dev *mod) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_CONNECTI; + msg.len = cpu_to_le16(0); + + return ican3_send_msg(mod, &msg); +} + +static int __devexit ican3_msg_disconnect(struct ican3_dev *mod) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_DISCONNECT; + msg.len = cpu_to_le16(0); + + return ican3_send_msg(mod, &msg); +} + +static int __devinit ican3_msg_newhostif(struct ican3_dev *mod) +{ + struct ican3_msg msg; + int ret; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_NEWHOSTIF; + msg.len = cpu_to_le16(0); + + /* If we're not using the old interface, switching seems bogus */ + WARN_ON(mod->iftype != 0); + + ret = ican3_send_msg(mod, &msg); + if (ret) + return ret; + + /* mark the module as using the new host interface */ + mod->iftype = 1; + return 0; +} + +static int __devinit ican3_msg_fasthostif(struct ican3_dev *mod) +{ + struct ican3_msg msg; + unsigned int addr; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_INITFDPMQUEUE; + msg.len = cpu_to_le16(8); + + /* write the tohost queue start address */ + addr = DPM_PAGE_ADDR(mod->fastrx_start); + msg.data[0] = addr & 0xff; + msg.data[1] = (addr >> 8) & 0xff; + msg.data[2] = (addr >> 16) & 0xff; + msg.data[3] = (addr >> 24) & 0xff; + + /* write the fromhost queue start address */ + addr = DPM_PAGE_ADDR(mod->fasttx_start); + msg.data[4] = addr & 0xff; + msg.data[5] = (addr >> 8) & 0xff; + msg.data[6] = (addr >> 16) & 0xff; + msg.data[7] = (addr >> 24) & 0xff; + + /* If we're not using the new interface yet, we cannot do this */ + WARN_ON(mod->iftype != 1); + + return ican3_send_msg(mod, &msg); +} + +/* + * Setup the CAN filter to either accept or reject all + * messages from the CAN bus. + */ +static int __devinit ican3_set_id_filter(struct ican3_dev *mod, bool accept) +{ + struct ican3_msg msg; + int ret; + + /* Standard Frame Format */ + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_SETAFILMASK; + msg.len = cpu_to_le16(5); + msg.data[0] = 0x00; /* IDLo LSB */ + msg.data[1] = 0x00; /* IDLo MSB */ + msg.data[2] = 0xff; /* IDHi LSB */ + msg.data[3] = 0x07; /* IDHi MSB */ + + /* accept all frames for fast host if, or reject all frames */ + msg.data[4] = accept ? SETAFILMASK_FASTIF : SETAFILMASK_REJECT; + + ret = ican3_send_msg(mod, &msg); + if (ret) + return ret; + + /* Extended Frame Format */ + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_SETAFILMASK; + msg.len = cpu_to_le16(13); + msg.data[0] = 0; /* MUX = 0 */ + msg.data[1] = 0x00; /* IDLo LSB */ + msg.data[2] = 0x00; + msg.data[3] = 0x00; + msg.data[4] = 0x20; /* IDLo MSB */ + msg.data[5] = 0xff; /* IDHi LSB */ + msg.data[6] = 0xff; + msg.data[7] = 0xff; + msg.data[8] = 0x3f; /* IDHi MSB */ + + /* accept all frames for fast host if, or reject all frames */ + msg.data[9] = accept ? SETAFILMASK_FASTIF : SETAFILMASK_REJECT; + + return ican3_send_msg(mod, &msg); +} + +/* + * Bring the CAN bus online or offline + */ +static int ican3_set_bus_state(struct ican3_dev *mod, bool on) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = on ? MSG_CONREQ : MSG_COFFREQ; + msg.len = cpu_to_le16(0); + + return ican3_send_msg(mod, &msg); +} + +static int ican3_set_termination(struct ican3_dev *mod, bool on) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_HWCONF; + msg.len = cpu_to_le16(2); + msg.data[0] = 0x00; + msg.data[1] = on ? HWCONF_TERMINATE_ON : HWCONF_TERMINATE_OFF; + + return ican3_send_msg(mod, &msg); +} + +static int ican3_send_inquiry(struct ican3_dev *mod, u8 subspec) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_INQUIRY; + msg.len = cpu_to_le16(2); + msg.data[0] = subspec; + msg.data[1] = 0x00; + + return ican3_send_msg(mod, &msg); +} + +static int ican3_set_buserror(struct ican3_dev *mod, u8 quota) +{ + struct ican3_msg msg; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_CCONFREQ; + msg.len = cpu_to_le16(2); + msg.data[0] = 0x00; + msg.data[1] = quota; + + return ican3_send_msg(mod, &msg); +} + +/* + * ICAN3 to Linux CAN Frame Conversion + */ + +static void ican3_to_can_frame(struct ican3_dev *mod, + struct ican3_fast_desc *desc, + struct can_frame *cf) +{ + if ((desc->command & ICAN3_CAN_TYPE_MASK) == ICAN3_CAN_TYPE_SFF) { + if (desc->data[1] & ICAN3_SFF_RTR) + cf->can_id |= CAN_RTR_FLAG; + + cf->can_id |= desc->data[0] << 3; + cf->can_id |= (desc->data[1] & 0xe0) >> 5; + cf->can_dlc = desc->data[1] & ICAN3_CAN_DLC_MASK; + memcpy(cf->data, &desc->data[2], sizeof(cf->data)); + } else { + cf->can_dlc = desc->data[0] & ICAN3_CAN_DLC_MASK; + if (desc->data[0] & ICAN3_EFF_RTR) + cf->can_id |= CAN_RTR_FLAG; + + if (desc->data[0] & ICAN3_EFF) { + cf->can_id |= CAN_EFF_FLAG; + cf->can_id |= desc->data[2] << 21; /* 28-21 */ + cf->can_id |= desc->data[3] << 13; /* 20-13 */ + cf->can_id |= desc->data[4] << 5; /* 12-5 */ + cf->can_id |= (desc->data[5] & 0xf8) >> 3; + } else { + cf->can_id |= desc->data[2] << 3; /* 10-3 */ + cf->can_id |= desc->data[3] >> 5; /* 2-0 */ + } + + memcpy(cf->data, &desc->data[6], sizeof(cf->data)); + } +} + +static void can_frame_to_ican3(struct ican3_dev *mod, + struct can_frame *cf, + struct ican3_fast_desc *desc) +{ + /* clear out any stale data in the descriptor */ + memset(desc->data, 0, sizeof(desc->data)); + + /* we always use the extended format, with the ECHO flag set */ + desc->command = ICAN3_CAN_TYPE_EFF; + desc->data[0] |= cf->can_dlc; + desc->data[1] |= ICAN3_ECHO; + + if (cf->can_id & CAN_RTR_FLAG) + desc->data[0] |= ICAN3_EFF_RTR; + + /* pack the id into the correct places */ + if (cf->can_id & CAN_EFF_FLAG) { + desc->data[0] |= ICAN3_EFF; + desc->data[2] = (cf->can_id & 0x1fe00000) >> 21; /* 28-21 */ + desc->data[3] = (cf->can_id & 0x001fe000) >> 13; /* 20-13 */ + desc->data[4] = (cf->can_id & 0x00001fe0) >> 5; /* 12-5 */ + desc->data[5] = (cf->can_id & 0x0000001f) << 3; /* 4-0 */ + } else { + desc->data[2] = (cf->can_id & 0x7F8) >> 3; /* bits 10-3 */ + desc->data[3] = (cf->can_id & 0x007) << 5; /* bits 2-0 */ + } + + /* copy the data bits into the descriptor */ + memcpy(&desc->data[6], cf->data, sizeof(cf->data)); +} + +/* + * Interrupt Handling + */ + +/* + * Handle an ID + Version message response from the firmware. We never generate + * this message in production code, but it is very useful when debugging to be + * able to display this message. + */ +static void ican3_handle_idvers(struct ican3_dev *mod, struct ican3_msg *msg) +{ + dev_dbg(mod->dev, "IDVERS response: %s\n", msg->data); +} + +static void ican3_handle_msglost(struct ican3_dev *mod, struct ican3_msg *msg) +{ + struct net_device *dev = mod->ndev; + struct net_device_stats *stats = &dev->stats; + struct can_frame *cf; + struct sk_buff *skb; + + /* + * Report that communication messages with the microcontroller firmware + * are being lost. These are never CAN frames, so we do not generate an + * error frame for userspace + */ + if (msg->spec == MSG_MSGLOST) { + dev_err(mod->dev, "lost %d control messages\n", msg->data[0]); + return; + } + + /* + * Oops, this indicates that we have lost messages in the fast queue, + * which are exclusively CAN messages. Our driver isn't reading CAN + * frames fast enough. + * + * We'll pretend that the SJA1000 told us that it ran out of buffer + * space, because there is not a better message for this. + */ + skb = alloc_can_err_skb(dev, &cf); + if (skb) { + cf->can_id |= CAN_ERR_CRTL; + cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; + stats->rx_errors++; + stats->rx_bytes += cf->can_dlc; + netif_rx(skb); + } +} + +/* + * Handle CAN Event Indication Messages from the firmware + * + * The ICAN3 firmware provides the values of some SJA1000 registers when it + * generates this message. The code below is largely copied from the + * drivers/net/can/sja1000/sja1000.c file, and adapted as necessary + */ +static int ican3_handle_cevtind(struct ican3_dev *mod, struct ican3_msg *msg) +{ + struct net_device *dev = mod->ndev; + struct net_device_stats *stats = &dev->stats; + enum can_state state = mod->can.state; + u8 status, isrc, rxerr, txerr; + struct can_frame *cf; + struct sk_buff *skb; + + /* we can only handle the SJA1000 part */ + if (msg->data[1] != CEVTIND_CHIP_SJA1000) { + dev_err(mod->dev, "unable to handle errors on non-SJA1000\n"); + return -ENODEV; + } + + /* check the message length for sanity */ + if (le16_to_cpu(msg->len) < 6) { + dev_err(mod->dev, "error message too short\n"); + return -EINVAL; + } + + skb = alloc_can_err_skb(dev, &cf); + if (skb == NULL) + return -ENOMEM; + + isrc = msg->data[0]; + status = msg->data[3]; + rxerr = msg->data[4]; + txerr = msg->data[5]; + + /* data overrun interrupt */ + if (isrc == CEVTIND_DOI || isrc == CEVTIND_LOST) { + dev_dbg(mod->dev, "data overrun interrupt\n"); + cf->can_id |= CAN_ERR_CRTL; + cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; + stats->rx_over_errors++; + stats->rx_errors++; + } + + /* error warning + passive interrupt */ + if (isrc == CEVTIND_EI) { + dev_dbg(mod->dev, "error warning + passive interrupt\n"); + if (status & SR_BS) { + state = CAN_STATE_BUS_OFF; + cf->can_id |= CAN_ERR_BUSOFF; + can_bus_off(dev); + } else if (status & SR_ES) { + if (rxerr >= 128 || txerr >= 128) + state = CAN_STATE_ERROR_PASSIVE; + else + state = CAN_STATE_ERROR_WARNING; + } else { + state = CAN_STATE_ERROR_ACTIVE; + } + } + + /* bus error interrupt */ + if (isrc == CEVTIND_BEI) { + u8 ecc = msg->data[2]; + + dev_dbg(mod->dev, "bus error interrupt\n"); + mod->can.can_stats.bus_error++; + stats->rx_errors++; + cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; + + switch (ecc & ECC_MASK) { + case ECC_BIT: + cf->data[2] |= CAN_ERR_PROT_BIT; + break; + case ECC_FORM: + cf->data[2] |= CAN_ERR_PROT_FORM; + break; + case ECC_STUFF: + cf->data[2] |= CAN_ERR_PROT_STUFF; + break; + default: + cf->data[2] |= CAN_ERR_PROT_UNSPEC; + cf->data[3] = ecc & ECC_SEG; + break; + } + + if ((ecc & ECC_DIR) == 0) + cf->data[2] |= CAN_ERR_PROT_TX; + + cf->data[6] = txerr; + cf->data[7] = rxerr; + } + + if (state != mod->can.state && (state == CAN_STATE_ERROR_WARNING || + state == CAN_STATE_ERROR_PASSIVE)) { + cf->can_id |= CAN_ERR_CRTL; + if (state == CAN_STATE_ERROR_WARNING) { + mod->can.can_stats.error_warning++; + cf->data[1] = (txerr > rxerr) ? + CAN_ERR_CRTL_TX_WARNING : + CAN_ERR_CRTL_RX_WARNING; + } else { + mod->can.can_stats.error_passive++; + cf->data[1] = (txerr > rxerr) ? + CAN_ERR_CRTL_TX_PASSIVE : + CAN_ERR_CRTL_RX_PASSIVE; + } + + cf->data[6] = txerr; + cf->data[7] = rxerr; + } + + mod->can.state = state; + stats->rx_errors++; + stats->rx_bytes += cf->can_dlc; + netif_rx(skb); + return 0; +} + +static void ican3_handle_inquiry(struct ican3_dev *mod, struct ican3_msg *msg) +{ + switch (msg->data[0]) { + case INQUIRY_STATUS: + case INQUIRY_EXTENDED: + mod->bec.rxerr = msg->data[5]; + mod->bec.txerr = msg->data[6]; + complete(&mod->buserror_comp); + break; + case INQUIRY_TERMINATION: + mod->termination_enabled = msg->data[6] & HWCONF_TERMINATE_ON; + complete(&mod->termination_comp); + break; + default: + dev_err(mod->dev, "recieved an unknown inquiry response\n"); + break; + } +} + +static void ican3_handle_unknown_message(struct ican3_dev *mod, + struct ican3_msg *msg) +{ + dev_warn(mod->dev, "recieved unknown message: spec 0x%.2x length %d\n", + msg->spec, le16_to_cpu(msg->len)); +} + +/* + * Handle a control message from the firmware + */ +static void ican3_handle_message(struct ican3_dev *mod, struct ican3_msg *msg) +{ + dev_dbg(mod->dev, "%s: modno %d spec 0x%.2x len %d bytes\n", __func__, + mod->num, msg->spec, le16_to_cpu(msg->len)); + + switch (msg->spec) { + case MSG_IDVERS: + ican3_handle_idvers(mod, msg); + break; + case MSG_MSGLOST: + case MSG_FMSGLOST: + ican3_handle_msglost(mod, msg); + break; + case MSG_CEVTIND: + ican3_handle_cevtind(mod, msg); + break; + case MSG_INQUIRY: + ican3_handle_inquiry(mod, msg); + break; + default: + ican3_handle_unknown_message(mod, msg); + break; + } +} + +/* + * Check that there is room in the TX ring to transmit another skb + * + * LOCKING: must hold mod->lock + */ +static bool ican3_txok(struct ican3_dev *mod) +{ + struct ican3_fast_desc __iomem *desc; + u8 control; + + /* copy the control bits of the descriptor */ + ican3_set_page(mod, mod->fasttx_start + (mod->fasttx_num / 16)); + desc = mod->dpm + ((mod->fasttx_num % 16) * sizeof(*desc)); + control = ioread8(&desc->control); + + /* if the control bits are not valid, then we have no more space */ + if (!(control & DESC_VALID)) + return false; + + return true; +} + +/* + * Recieve one CAN frame from the hardware + * + * This works like the core of a NAPI function, but is intended to be called + * from workqueue context instead. This driver already needs a workqueue to + * process control messages, so we use the workqueue instead of using NAPI. + * This was done to simplify locking. + * + * CONTEXT: must be called from user context + */ +static int ican3_recv_skb(struct ican3_dev *mod) +{ + struct net_device *ndev = mod->ndev; + struct net_device_stats *stats = &ndev->stats; + struct ican3_fast_desc desc; + void __iomem *desc_addr; + struct can_frame *cf; + struct sk_buff *skb; + unsigned long flags; + + spin_lock_irqsave(&mod->lock, flags); + + /* copy the whole descriptor */ + ican3_set_page(mod, mod->fastrx_start + (mod->fastrx_num / 16)); + desc_addr = mod->dpm + ((mod->fastrx_num % 16) * sizeof(desc)); + memcpy_fromio(&desc, desc_addr, sizeof(desc)); + + spin_unlock_irqrestore(&mod->lock, flags); + + /* check that we actually have a CAN frame */ + if (!(desc.control & DESC_VALID)) + return -ENOBUFS; + + /* allocate an skb */ + skb = alloc_can_skb(ndev, &cf); + if (unlikely(skb == NULL)) { + stats->rx_dropped++; + goto err_noalloc; + } + + /* convert the ICAN3 frame into Linux CAN format */ + ican3_to_can_frame(mod, &desc, cf); + + /* receive the skb, update statistics */ + netif_receive_skb(skb); + stats->rx_packets++; + stats->rx_bytes += cf->can_dlc; + +err_noalloc: + /* toggle the valid bit and return the descriptor to the ring */ + desc.control ^= DESC_VALID; + + spin_lock_irqsave(&mod->lock, flags); + + ican3_set_page(mod, mod->fastrx_start + (mod->fastrx_num / 16)); + memcpy_toio(desc_addr, &desc, 1); + + /* update the next buffer pointer */ + mod->fastrx_num = (desc.control & DESC_WRAP) ? 0 + : (mod->fastrx_num + 1); + + /* there are still more buffers to process */ + spin_unlock_irqrestore(&mod->lock, flags); + return 0; +} + +static int ican3_napi(struct napi_struct *napi, int budget) +{ + struct ican3_dev *mod = container_of(napi, struct ican3_dev, napi); + struct ican3_msg msg; + unsigned long flags; + int received = 0; + int ret; + + /* process all communication messages */ + while (true) { + ret = ican3_recv_msg(mod, &msg); + if (ret) + break; + + ican3_handle_message(mod, &msg); + } + + /* process all CAN frames from the fast interface */ + while (received < budget) { + ret = ican3_recv_skb(mod); + if (ret) + break; + + received++; + } + + /* We have processed all packets that the adapter had, but it + * was less than our budget, stop polling */ + if (received < budget) + napi_complete(napi); + + spin_lock_irqsave(&mod->lock, flags); + + /* Wake up the transmit queue if necessary */ + if (netif_queue_stopped(mod->ndev) && ican3_txok(mod)) + netif_wake_queue(mod->ndev); + + spin_unlock_irqrestore(&mod->lock, flags); + + /* re-enable interrupt generation */ + iowrite8(1 << mod->num, &mod->ctrl->int_enable); + return received; +} + +static irqreturn_t ican3_irq(int irq, void *dev_id) +{ + struct ican3_dev *mod = dev_id; + u8 stat; + + /* + * The interrupt status register on this device reports interrupts + * as zeroes instead of using ones like most other devices + */ + stat = ioread8(&mod->ctrl->int_disable) & (1 << mod->num); + if (stat == (1 << mod->num)) + return IRQ_NONE; + + /* clear the MODULbus interrupt from the microcontroller */ + ioread8(&mod->dpmctrl->interrupt); + + /* disable interrupt generation, schedule the NAPI poller */ + iowrite8(1 << mod->num, &mod->ctrl->int_disable); + napi_schedule(&mod->napi); + return IRQ_HANDLED; +} + +/* + * Firmware reset, startup, and shutdown + */ + +/* + * Reset an ICAN module to its power-on state + * + * CONTEXT: no network device registered + * LOCKING: work function disabled + */ +static int ican3_reset_module(struct ican3_dev *mod) +{ + u8 val = 1 << mod->num; + unsigned long start; + u8 runold, runnew; + + /* disable interrupts so no more work is scheduled */ + iowrite8(1 << mod->num, &mod->ctrl->int_disable); + + /* flush any pending work */ + flush_scheduled_work(); + + /* the first unallocated page in the DPM is #9 */ + mod->free_page = DPM_FREE_START; + + ican3_set_page(mod, QUEUE_OLD_CONTROL); + runold = ioread8(mod->dpm + TARGET_RUNNING); + + /* reset the module */ + iowrite8(val, &mod->ctrl->reset_assert); + iowrite8(val, &mod->ctrl->reset_deassert); + + /* wait until the module has finished resetting and is running */ + start = jiffies; + do { + ican3_set_page(mod, QUEUE_OLD_CONTROL); + runnew = ioread8(mod->dpm + TARGET_RUNNING); + if (runnew == (runold ^ 0xff)) + return 0; + + msleep(10); + } while (time_before(jiffies, start + HZ / 4)); + + dev_err(mod->dev, "failed to reset CAN module\n"); + return -ETIMEDOUT; +} + +static void __devexit ican3_shutdown_module(struct ican3_dev *mod) +{ + ican3_msg_disconnect(mod); + ican3_reset_module(mod); +} + +/* + * Startup an ICAN module, bringing it into fast mode + */ +static int __devinit ican3_startup_module(struct ican3_dev *mod) +{ + int ret; + + ret = ican3_reset_module(mod); + if (ret) { + dev_err(mod->dev, "unable to reset module\n"); + return ret; + } + + /* re-enable interrupts so we can send messages */ + iowrite8(1 << mod->num, &mod->ctrl->int_enable); + + ret = ican3_msg_connect(mod); + if (ret) { + dev_err(mod->dev, "unable to connect to module\n"); + return ret; + } + + ican3_init_new_host_interface(mod); + ret = ican3_msg_newhostif(mod); + if (ret) { + dev_err(mod->dev, "unable to switch to new-style interface\n"); + return ret; + } + + /* default to "termination on" */ + ret = ican3_set_termination(mod, true); + if (ret) { + dev_err(mod->dev, "unable to enable termination\n"); + return ret; + } + + /* default to "bus errors enabled" */ + ret = ican3_set_buserror(mod, ICAN3_BUSERR_QUOTA_MAX); + if (ret) { + dev_err(mod->dev, "unable to set bus-error\n"); + return ret; + } + + ican3_init_fast_host_interface(mod); + ret = ican3_msg_fasthostif(mod); + if (ret) { + dev_err(mod->dev, "unable to switch to fast host interface\n"); + return ret; + } + + ret = ican3_set_id_filter(mod, true); + if (ret) { + dev_err(mod->dev, "unable to set acceptance filter\n"); + return ret; + } + + return 0; +} + +/* + * CAN Network Device + */ + +static int ican3_open(struct net_device *ndev) +{ + struct ican3_dev *mod = netdev_priv(ndev); + u8 quota; + int ret; + + /* open the CAN layer */ + ret = open_candev(ndev); + if (ret) { + dev_err(mod->dev, "unable to start CAN layer\n"); + return ret; + } + + /* set the bus error generation state appropriately */ + if (mod->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING) + quota = ICAN3_BUSERR_QUOTA_MAX; + else + quota = 0; + + ret = ican3_set_buserror(mod, quota); + if (ret) { + dev_err(mod->dev, "unable to set bus-error\n"); + close_candev(ndev); + return ret; + } + + /* bring the bus online */ + ret = ican3_set_bus_state(mod, true); + if (ret) { + dev_err(mod->dev, "unable to set bus-on\n"); + close_candev(ndev); + return ret; + } + + /* start up the network device */ + mod->can.state = CAN_STATE_ERROR_ACTIVE; + netif_start_queue(ndev); + + return 0; +} + +static int ican3_stop(struct net_device *ndev) +{ + struct ican3_dev *mod = netdev_priv(ndev); + int ret; + + /* stop the network device xmit routine */ + netif_stop_queue(ndev); + mod->can.state = CAN_STATE_STOPPED; + + /* bring the bus offline, stop receiving packets */ + ret = ican3_set_bus_state(mod, false); + if (ret) { + dev_err(mod->dev, "unable to set bus-off\n"); + return ret; + } + + /* close the CAN layer */ + close_candev(ndev); + return 0; +} + +static int ican3_xmit(struct sk_buff *skb, struct net_device *ndev) +{ + struct ican3_dev *mod = netdev_priv(ndev); + struct net_device_stats *stats = &ndev->stats; + struct can_frame *cf = (struct can_frame *)skb->data; + struct ican3_fast_desc desc; + void __iomem *desc_addr; + unsigned long flags; + + spin_lock_irqsave(&mod->lock, flags); + + /* check that we can actually transmit */ + if (!ican3_txok(mod)) { + dev_err(mod->dev, "no free descriptors, stopping queue\n"); + netif_stop_queue(ndev); + spin_unlock_irqrestore(&mod->lock, flags); + return NETDEV_TX_BUSY; + } + + /* copy the control bits of the descriptor */ + ican3_set_page(mod, mod->fasttx_start + (mod->fasttx_num / 16)); + desc_addr = mod->dpm + ((mod->fasttx_num % 16) * sizeof(desc)); + memset(&desc, 0, sizeof(desc)); + memcpy_fromio(&desc, desc_addr, 1); + + /* convert the Linux CAN frame into ICAN3 format */ + can_frame_to_ican3(mod, cf, &desc); + + /* + * the programming manual says that you must set the IVALID bit, then + * interrupt, then set the valid bit. Quite weird, but it seems to be + * required for this to work + */ + desc.control |= DESC_IVALID; + memcpy_toio(desc_addr, &desc, sizeof(desc)); + + /* generate a MODULbus interrupt to the microcontroller */ + iowrite8(0x01, &mod->dpmctrl->interrupt); + + desc.control ^= DESC_VALID; + memcpy_toio(desc_addr, &desc, sizeof(desc)); + + /* update the next buffer pointer */ + mod->fasttx_num = (desc.control & DESC_WRAP) ? 0 + : (mod->fasttx_num + 1); + + /* update statistics */ + stats->tx_packets++; + stats->tx_bytes += cf->can_dlc; + kfree_skb(skb); + + /* + * This hardware doesn't have TX-done notifications, so we'll try and + * emulate it the best we can using ECHO skbs. Get the next TX + * descriptor, and see if we have room to send. If not, stop the queue. + * It will be woken when the ECHO skb for the current packet is recv'd. + */ + + /* copy the control bits of the descriptor */ + if (!ican3_txok(mod)) + netif_stop_queue(ndev); + + spin_unlock_irqrestore(&mod->lock, flags); + return NETDEV_TX_OK; +} + +static const struct net_device_ops ican3_netdev_ops = { + .ndo_open = ican3_open, + .ndo_stop = ican3_stop, + .ndo_start_xmit = ican3_xmit, +}; + +/* + * Low-level CAN Device + */ + +/* This structure was stolen from drivers/net/can/sja1000/sja1000.c */ +static struct can_bittiming_const ican3_bittiming_const = { + .name = DRV_NAME, + .tseg1_min = 1, + .tseg1_max = 16, + .tseg2_min = 1, + .tseg2_max = 8, + .sjw_max = 4, + .brp_min = 1, + .brp_max = 64, + .brp_inc = 1, +}; + +/* + * This routine was stolen from drivers/net/can/sja1000/sja1000.c + * + * The bittiming register command for the ICAN3 just sets the bit timing + * registers on the SJA1000 chip directly + */ +static int ican3_set_bittiming(struct net_device *ndev) +{ + struct ican3_dev *mod = netdev_priv(ndev); + struct can_bittiming *bt = &mod->can.bittiming; + struct ican3_msg msg; + u8 btr0, btr1; + + btr0 = ((bt->brp - 1) & 0x3f) | (((bt->sjw - 1) & 0x3) << 6); + btr1 = ((bt->prop_seg + bt->phase_seg1 - 1) & 0xf) | + (((bt->phase_seg2 - 1) & 0x7) << 4); + if (mod->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) + btr1 |= 0x80; + + memset(&msg, 0, sizeof(msg)); + msg.spec = MSG_CBTRREQ; + msg.len = cpu_to_le16(4); + msg.data[0] = 0x00; + msg.data[1] = 0x00; + msg.data[2] = btr0; + msg.data[3] = btr1; + + return ican3_send_msg(mod, &msg); +} + +static int ican3_set_mode(struct net_device *ndev, enum can_mode mode) +{ + struct ican3_dev *mod = netdev_priv(ndev); + int ret; + + if (mode != CAN_MODE_START) + return -ENOTSUPP; + + /* bring the bus online */ + ret = ican3_set_bus_state(mod, true); + if (ret) { + dev_err(mod->dev, "unable to set bus-on\n"); + return ret; + } + + /* start up the network device */ + mod->can.state = CAN_STATE_ERROR_ACTIVE; + + if (netif_queue_stopped(ndev)) + netif_wake_queue(ndev); + + return 0; +} + +static int ican3_get_berr_counter(const struct net_device *ndev, + struct can_berr_counter *bec) +{ + struct ican3_dev *mod = netdev_priv(ndev); + int ret; + + ret = ican3_send_inquiry(mod, INQUIRY_STATUS); + if (ret) + return ret; + + ret = wait_for_completion_timeout(&mod->buserror_comp, HZ); + if (ret <= 0) { + dev_info(mod->dev, "%s timed out\n", __func__); + return -ETIMEDOUT; + } + + bec->rxerr = mod->bec.rxerr; + bec->txerr = mod->bec.txerr; + return 0; +} + +/* + * Sysfs Attributes + */ + +static ssize_t ican3_sysfs_show_term(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ican3_dev *mod = netdev_priv(to_net_dev(dev)); + int ret; + + ret = ican3_send_inquiry(mod, INQUIRY_TERMINATION); + if (ret) + return ret; + + ret = wait_for_completion_timeout(&mod->termination_comp, HZ); + if (ret <= 0) { + dev_info(mod->dev, "%s timed out\n", __func__); + return -ETIMEDOUT; + } + + return snprintf(buf, PAGE_SIZE, "%u\n", mod->termination_enabled); +} + +static ssize_t ican3_sysfs_set_term(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ican3_dev *mod = netdev_priv(to_net_dev(dev)); + unsigned long enable; + int ret; + + if (strict_strtoul(buf, 0, &enable)) + return -EINVAL; + + ret = ican3_set_termination(mod, enable); + if (ret) + return ret; + + return count; +} + +static DEVICE_ATTR(termination, S_IWUGO | S_IRUGO, ican3_sysfs_show_term, + ican3_sysfs_set_term); + +static struct attribute *ican3_sysfs_attrs[] = { + &dev_attr_termination.attr, + NULL, +}; + +static struct attribute_group ican3_sysfs_attr_group = { + .attrs = ican3_sysfs_attrs, +}; + +/* + * PCI Subsystem + */ + +static int __devinit ican3_probe(struct platform_device *pdev) +{ + struct janz_platform_data *pdata; + struct net_device *ndev; + struct ican3_dev *mod; + struct resource *res; + struct device *dev; + int ret; + + pdata = pdev->dev.platform_data; + if (!pdata) + return -ENXIO; + + dev_dbg(&pdev->dev, "probe: module number %d\n", pdata->modno); + + /* save the struct device for printing */ + dev = &pdev->dev; + + /* allocate the CAN device and private data */ + ndev = alloc_candev(sizeof(*mod), 0); + if (!ndev) { + dev_err(dev, "unable to allocate CANdev\n"); + ret = -ENOMEM; + goto out_return; + } + + platform_set_drvdata(pdev, ndev); + mod = netdev_priv(ndev); + mod->ndev = ndev; + mod->dev = &pdev->dev; + mod->num = pdata->modno; + netif_napi_add(ndev, &mod->napi, ican3_napi, ICAN3_RX_BUFFERS); + spin_lock_init(&mod->lock); + init_completion(&mod->termination_comp); + init_completion(&mod->buserror_comp); + + /* setup device-specific sysfs attributes */ + ndev->sysfs_groups[0] = &ican3_sysfs_attr_group; + + /* the first unallocated page in the DPM is 9 */ + mod->free_page = DPM_FREE_START; + + ndev->netdev_ops = &ican3_netdev_ops; + ndev->flags |= IFF_ECHO; + SET_NETDEV_DEV(ndev, &pdev->dev); + + mod->can.clock.freq = ICAN3_CAN_CLOCK; + mod->can.bittiming_const = &ican3_bittiming_const; + mod->can.do_set_bittiming = ican3_set_bittiming; + mod->can.do_set_mode = ican3_set_mode; + mod->can.do_get_berr_counter = ican3_get_berr_counter; + mod->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES + | CAN_CTRLMODE_BERR_REPORTING; + + /* find our IRQ number */ + mod->irq = platform_get_irq(pdev, 0); + if (mod->irq < 0) { + dev_err(dev, "IRQ line not found\n"); + ret = -ENODEV; + goto out_free_ndev; + } + + ndev->irq = mod->irq; + + /* get access to the MODULbus registers for this module */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "MODULbus registers not found\n"); + ret = -ENODEV; + goto out_free_ndev; + } + + mod->dpm = ioremap(res->start, resource_size(res)); + if (!mod->dpm) { + dev_err(dev, "MODULbus registers not ioremap\n"); + ret = -ENOMEM; + goto out_free_ndev; + } + + mod->dpmctrl = mod->dpm + DPM_PAGE_SIZE; + + /* get access to the control registers for this module */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(dev, "CONTROL registers not found\n"); + ret = -ENODEV; + goto out_iounmap_dpm; + } + + mod->ctrl = ioremap(res->start, resource_size(res)); + if (!mod->ctrl) { + dev_err(dev, "CONTROL registers not ioremap\n"); + ret = -ENOMEM; + goto out_iounmap_dpm; + } + + /* disable our IRQ, then hookup the IRQ handler */ + iowrite8(1 << mod->num, &mod->ctrl->int_disable); + ret = request_irq(mod->irq, ican3_irq, IRQF_SHARED, DRV_NAME, mod); + if (ret) { + dev_err(dev, "unable to request IRQ\n"); + goto out_iounmap_ctrl; + } + + /* reset and initialize the CAN controller into fast mode */ + napi_enable(&mod->napi); + ret = ican3_startup_module(mod); + if (ret) { + dev_err(dev, "%s: unable to start CANdev\n", __func__); + goto out_free_irq; + } + + /* register with the Linux CAN layer */ + ret = register_candev(ndev); + if (ret) { + dev_err(dev, "%s: unable to register CANdev\n", __func__); + goto out_free_irq; + } + + dev_info(dev, "module %d: registered CAN device\n", pdata->modno); + return 0; + +out_free_irq: + napi_disable(&mod->napi); + iowrite8(1 << mod->num, &mod->ctrl->int_disable); + free_irq(mod->irq, mod); +out_iounmap_ctrl: + iounmap(mod->ctrl); +out_iounmap_dpm: + iounmap(mod->dpm); +out_free_ndev: + free_candev(ndev); +out_return: + return ret; +} + +static int __devexit ican3_remove(struct platform_device *pdev) +{ + struct net_device *ndev = platform_get_drvdata(pdev); + struct ican3_dev *mod = netdev_priv(ndev); + + /* unregister the netdevice, stop interrupts */ + unregister_netdev(ndev); + napi_disable(&mod->napi); + iowrite8(1 << mod->num, &mod->ctrl->int_disable); + free_irq(mod->irq, mod); + + /* put the module into reset */ + ican3_shutdown_module(mod); + + /* unmap all registers */ + iounmap(mod->ctrl); + iounmap(mod->dpm); + + free_candev(ndev); + + return 0; +} + +static struct platform_driver ican3_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + }, + .probe = ican3_probe, + .remove = __devexit_p(ican3_remove), +}; + +static int __init ican3_init(void) +{ + return platform_driver_register(&ican3_driver); +} + +static void __exit ican3_exit(void) +{ + platform_driver_unregister(&ican3_driver); +} + +MODULE_AUTHOR("Ira W. Snyder "); +MODULE_DESCRIPTION("Janz MODULbus VMOD-ICAN3 Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:janz-ican3"); + +module_init(ican3_init); +module_exit(ican3_exit); -- cgit v1.2.2 From 84e5b9f75b48fe4a1e4ee72698230701439d0805 Mon Sep 17 00:00:00 2001 From: Sarveshwar Bandi Date: Thu, 27 May 2010 16:28:15 -0700 Subject: be2net: Patch removes redundant while statement in loop. Signed-off-by: Sarveshwar Bandi Signed-off-by: David S. Miller --- drivers/net/benet/be_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index aa065c71ddd8..54b14272f333 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -1861,7 +1861,7 @@ static int be_setup(struct be_adapter *adapter) goto if_destroy; } vf++; - } while (vf < num_vfs); + } } else if (!be_physfn(adapter)) { status = be_cmd_mac_addr_query(adapter, mac, MAC_ADDRESS_TYPE_NETWORK, false, adapter->if_handle); -- cgit v1.2.2 From 89dc0be68f4aaa06dba1b5d6ea9ecfe8fa9b7bf0 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 27 May 2010 16:29:05 -0700 Subject: drivers/net/hamradio: Eliminate a NULL pointer dereference At the point of the print, dev is NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any return ...; } else S3 // Signed-off-by: Julia Lawall Signed-off-by: David S. Miller --- drivers/net/hamradio/yam.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 694132e04af6..4e7d1d0a2340 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -1151,8 +1151,7 @@ static int __init yam_init_driver(void) dev = alloc_netdev(sizeof(struct yam_port), name, yam_setup); if (!dev) { - printk(KERN_ERR "yam: cannot allocate net device %s\n", - dev->name); + pr_err("yam: cannot allocate net device\n"); err = -ENOMEM; goto error; } -- cgit v1.2.2 From 17d95640034c4e0f12e5f1c9d1097d8dba6484ea Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 27 May 2010 16:30:03 -0700 Subject: drivers/net: Eliminate a NULL pointer dereference At the point of the print, dev is NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any return ...; } else S3 // Signed-off-by: Julia Lawall Signed-off-by: David S. Miller --- drivers/net/3c507.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/3c507.c b/drivers/net/3c507.c index 82eaf65d2d85..ea9b7a098c9b 100644 --- a/drivers/net/3c507.c +++ b/drivers/net/3c507.c @@ -551,8 +551,7 @@ static irqreturn_t el16_interrupt(int irq, void *dev_id) void __iomem *shmem; if (dev == NULL) { - pr_err("%s: net_interrupt(): irq %d for unknown device.\n", - dev->name, irq); + pr_err("net_interrupt(): irq %d for unknown device.\n", irq); return IRQ_NONE; } -- cgit v1.2.2 From b58ffb41fc09d1ffaca97e5ae801233575be2a7f Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Thu, 27 May 2010 16:31:41 -0700 Subject: cnic: Fix context memory init. on 5709. We need to zero context memory on 5709 in the function cnic_init_context(). Without this, iscsid restart on 5709 will not work because of stale data. TX context blocks should not be initialized by cnic_init_context() because of the special remapping on 5709. Update version to 2.1.2. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/cnic.c | 10 +++------- drivers/net/cnic_if.h | 4 ++-- 2 files changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index be90d3598bca..fe925663d39a 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -3367,13 +3367,9 @@ static int cnic_cm_shutdown(struct cnic_dev *dev) static void cnic_init_context(struct cnic_dev *dev, u32 cid) { - struct cnic_local *cp = dev->cnic_priv; u32 cid_addr; int i; - if (CHIP_NUM(cp) == CHIP_NUM_5709) - return; - cid_addr = GET_CID_ADDR(cid); for (i = 0; i < CTX_SIZE; i += 4) @@ -3530,14 +3526,11 @@ static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev) sb_id = cp->status_blk_num; tx_cid = 20; - cnic_init_context(dev, tx_cid); - cnic_init_context(dev, tx_cid + 1); cp->tx_cons_ptr = &s_blk->status_tx_quick_consumer_index2; if (ethdev->drv_state & CNIC_DRV_STATE_USING_MSIX) { struct status_block_msix *sblk = cp->status_blk.bnx2; tx_cid = TX_TSS_CID + sb_id - 1; - cnic_init_context(dev, tx_cid); CNIC_WR(dev, BNX2_TSCH_TSS_CFG, (sb_id << 24) | (TX_TSS_CID << 7)); cp->tx_cons_ptr = &sblk->status_tx_quick_consumer_index; @@ -3556,6 +3549,9 @@ static void cnic_init_bnx2_tx_ring(struct cnic_dev *dev) offset2 = BNX2_L2CTX_TBDR_BHADDR_HI_XI; offset3 = BNX2_L2CTX_TBDR_BHADDR_LO_XI; } else { + cnic_init_context(dev, tx_cid); + cnic_init_context(dev, tx_cid + 1); + offset0 = BNX2_L2CTX_TYPE; offset1 = BNX2_L2CTX_CMD_TYPE; offset2 = BNX2_L2CTX_TBDR_BHADDR_HI; diff --git a/drivers/net/cnic_if.h b/drivers/net/cnic_if.h index 110c62072e6f..0c55177db046 100644 --- a/drivers/net/cnic_if.h +++ b/drivers/net/cnic_if.h @@ -12,8 +12,8 @@ #ifndef CNIC_IF_H #define CNIC_IF_H -#define CNIC_MODULE_VERSION "2.1.1" -#define CNIC_MODULE_RELDATE "Feb 22, 2010" +#define CNIC_MODULE_VERSION "2.1.2" +#define CNIC_MODULE_RELDATE "May 26, 2010" #define CNIC_ULP_RDMA 0 #define CNIC_ULP_ISCSI 1 -- cgit v1.2.2 From 418bd0d4dfbff25ffe4365ddd3e7cba8c70ccba8 Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Fri, 28 May 2010 03:40:39 -0700 Subject: netdev/fec: fix ifconfig eth0 down hang issue BugLink: http://bugs.launchpad.net/bugs/559065 In fec open/close function, we need to use phy_connect and phy_disconnect operation before we start/stop phy. Otherwise it will cause system hang. Only call fec_enet_mii_probe() in open function, because the first open action will cause NULL pointer error. Signed-off-by: Bryan Wu Signed-off-by: David S. Miller --- drivers/net/fec.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/fec.c b/drivers/net/fec.c index 326465ffbb23..ddf7a86cd466 100644 --- a/drivers/net/fec.c +++ b/drivers/net/fec.c @@ -681,6 +681,8 @@ static int fec_enet_mii_probe(struct net_device *dev) struct phy_device *phy_dev = NULL; int phy_addr; + fep->phy_dev = NULL; + /* find the first phy */ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { if (fep->mii_bus->phy_map[phy_addr]) { @@ -711,6 +713,11 @@ static int fec_enet_mii_probe(struct net_device *dev) fep->link = 0; fep->full_duplex = 0; + printk(KERN_INFO "%s: Freescale FEC PHY driver [%s] " + "(mii_bus:phy_addr=%s, irq=%d)\n", dev->name, + fep->phy_dev->drv->name, dev_name(&fep->phy_dev->dev), + fep->phy_dev->irq); + return 0; } @@ -756,13 +763,8 @@ static int fec_enet_mii_init(struct platform_device *pdev) if (mdiobus_register(fep->mii_bus)) goto err_out_free_mdio_irq; - if (fec_enet_mii_probe(dev) != 0) - goto err_out_unregister_bus; - return 0; -err_out_unregister_bus: - mdiobus_unregister(fep->mii_bus); err_out_free_mdio_irq: kfree(fep->mii_bus->irq); err_out_free_mdiobus: @@ -915,7 +917,12 @@ fec_enet_open(struct net_device *dev) if (ret) return ret; - /* schedule a link state check */ + /* Probe and connect to PHY when open the interface */ + ret = fec_enet_mii_probe(dev); + if (ret) { + fec_enet_free_buffers(dev); + return ret; + } phy_start(fep->phy_dev); netif_start_queue(dev); fep->opened = 1; @@ -929,10 +936,12 @@ fec_enet_close(struct net_device *dev) /* Don't know what to do yet. */ fep->opened = 0; - phy_stop(fep->phy_dev); netif_stop_queue(dev); fec_stop(dev); + if (fep->phy_dev) + phy_disconnect(fep->phy_dev); + fec_enet_free_buffers(dev); return 0; @@ -1316,11 +1325,6 @@ fec_probe(struct platform_device *pdev) if (ret) goto failed_register; - printk(KERN_INFO "%s: Freescale FEC PHY driver [%s] " - "(mii_bus:phy_addr=%s, irq=%d)\n", ndev->name, - fep->phy_dev->drv->name, dev_name(&fep->phy_dev->dev), - fep->phy_dev->irq); - return 0; failed_register: -- cgit v1.2.2