diff options
| -rw-r--r-- | Documentation/rapidio/sysfs.txt | 66 | ||||
| -rw-r--r-- | arch/powerpc/sysdev/fsl_rio.c | 1 | ||||
| -rw-r--r-- | drivers/net/rionet.c | 1 | ||||
| -rw-r--r-- | drivers/rapidio/devices/tsi721.c | 1 | ||||
| -rw-r--r-- | drivers/rapidio/rio-driver.c | 22 | ||||
| -rw-r--r-- | drivers/rapidio/rio-scan.c | 1 | ||||
| -rw-r--r-- | drivers/rapidio/rio-sysfs.c | 40 | ||||
| -rw-r--r-- | drivers/rapidio/rio.c | 11 | ||||
| -rw-r--r-- | drivers/rapidio/rio.h | 1 | ||||
| -rw-r--r-- | include/linux/rio.h | 5 |
10 files changed, 133 insertions, 16 deletions
diff --git a/Documentation/rapidio/sysfs.txt b/Documentation/rapidio/sysfs.txt index 271438c0617..47ce9a5336e 100644 --- a/Documentation/rapidio/sysfs.txt +++ b/Documentation/rapidio/sysfs.txt @@ -2,8 +2,8 @@ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -1. Device Subdirectories ------------------------- +1. RapidIO Device Subdirectories +-------------------------------- For each RapidIO device, the RapidIO subsystem creates files in an individual subdirectory with the following name, /sys/bus/rapidio/devices/<device_name>. @@ -25,8 +25,8 @@ seen by the enumerating host (destID = 1): NOTE: An enumerating or discovering endpoint does not create a sysfs entry for itself, this is why an endpoint with destID=1 is not shown in the list. -2. Attributes Common for All Devices ------------------------------------- +2. Attributes Common for All RapidIO Devices +-------------------------------------------- Each device subdirectory contains the following informational read-only files: @@ -52,16 +52,16 @@ This attribute is similar in behavior to the "config" attribute of PCI devices and provides an access to the RapidIO device registers using standard file read and write operations. -3. Endpoint Device Attributes ------------------------------ +3. RapidIO Endpoint Device Attributes +------------------------------------- Currently Linux RapidIO subsystem does not create any endpoint specific sysfs attributes. It is possible that RapidIO master port drivers and endpoint device drivers will add their device-specific sysfs attributes but such attributes are outside the scope of this document. -4. Switch Device Attributes ---------------------------- +4. RapidIO Switch Device Attributes +----------------------------------- RapidIO switches have additional attributes in sysfs. RapidIO subsystem supports common and device-specific sysfs attributes for switches. Because switches are @@ -106,3 +106,53 @@ attribute: for that controller always will be 0. To initiate RapidIO enumeration/discovery on all available mports a user must write '-1' (or RIO_MPORT_ANY) into this attribute file. + + +6. RapidIO Bus Controllers/Ports +-------------------------------- + +On-chip RapidIO controllers and PCIe-to-RapidIO bridges (referenced as +"Master Port" or "mport") are presented in sysfs as the special class of +devices: "rapidio_port". + +The /sys/class/rapidio_port subdirectory contains individual subdirectories +named as "rapidioN" where N = mport ID registered with RapidIO subsystem. + +NOTE: An mport ID is not a RapidIO destination ID assigned to a given local +mport device. + +Each mport device subdirectory in addition to standard entries contains the +following device-specific attributes: + + port_destid - reports RapidIO destination ID assigned to the given RapidIO + mport device. If value 0xFFFFFFFF is returned this means that + no valid destination ID have been assigned to the mport (yet). + Normally, before enumeration/discovery have been executed only + fabric enumerating mports have a valid destination ID assigned + to them using "hdid=..." rapidio module parameter. + sys_size - reports RapidIO common transport system size: + 0 = small (8-bit destination ID, max. 256 devices), + 1 = large (16-bit destination ID, max. 65536 devices). + +After enumeration or discovery was performed for a given mport device, +the corresponding subdirectory will also contain subdirectories for each +child RapidIO device connected to the mport. Naming conventions for RapidIO +devices are described in Section 1 above. + +The example below shows mport device subdirectory with several child RapidIO +devices attached to it. + +[rio@rapidio ~]$ ls /sys/class/rapidio_port/rapidio0/ -l +total 0 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0001 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0004 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:e:0007 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0002 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0003 +drwxr-xr-x 3 root root 0 Feb 11 15:10 00:s:0005 +lrwxrwxrwx 1 root root 0 Feb 11 15:11 device -> ../../../0000:01:00.0 +-r--r--r-- 1 root root 4096 Feb 11 15:11 port_destid +drwxr-xr-x 2 root root 0 Feb 11 15:11 power +lrwxrwxrwx 1 root root 0 Feb 11 15:04 subsystem -> ../../../../../../class/rapidio_port +-r--r--r-- 1 root root 4096 Feb 11 15:11 sys_size +-rw-r--r-- 1 root root 4096 Feb 11 15:04 uevent diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c index 95dd892e990..cf2b0840a67 100644 --- a/arch/powerpc/sysdev/fsl_rio.c +++ b/arch/powerpc/sysdev/fsl_rio.c @@ -531,6 +531,7 @@ int fsl_rio_setup(struct platform_device *dev) sprintf(port->name, "RIO mport %d", i); priv->dev = &dev->dev; + port->dev.parent = &dev->dev; port->ops = ops; port->priv = priv; port->phys_efptr = 0x100; diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c index 6d1f6ed3113..a8497183ff8 100644 --- a/drivers/net/rionet.c +++ b/drivers/net/rionet.c @@ -493,6 +493,7 @@ static int rionet_setup_netdev(struct rio_mport *mport, struct net_device *ndev) ndev->netdev_ops = &rionet_netdev_ops; ndev->mtu = RIO_MAX_MSG_SIZE - 14; ndev->features = NETIF_F_LLTX; + SET_NETDEV_DEV(ndev, &mport->dev); SET_ETHTOOL_OPS(ndev, &rionet_ethtool_ops); spin_lock_init(&rnet->lock); diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c index ff7cbf2d28e..1753dc693c1 100644 --- a/drivers/rapidio/devices/tsi721.c +++ b/drivers/rapidio/devices/tsi721.c @@ -2256,6 +2256,7 @@ static int tsi721_setup_mport(struct tsi721_device *priv) mport->phy_type = RIO_PHY_SERIAL; mport->priv = (void *)priv; mport->phys_efptr = 0x100; + mport->dev.parent = &pdev->dev; priv->mport = mport; INIT_LIST_HEAD(&mport->dbells); diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c index c9ae692d345..f301f059bb8 100644 --- a/drivers/rapidio/rio-driver.c +++ b/drivers/rapidio/rio-driver.c @@ -167,7 +167,6 @@ void rio_unregister_driver(struct rio_driver *rdrv) void rio_attach_device(struct rio_dev *rdev) { rdev->dev.bus = &rio_bus_type; - rdev->dev.parent = &rio_bus; } EXPORT_SYMBOL_GPL(rio_attach_device); @@ -216,9 +215,12 @@ static int rio_uevent(struct device *dev, struct kobj_uevent_env *env) return 0; } -struct device rio_bus = { - .init_name = "rapidio", +struct class rio_mport_class = { + .name = "rapidio_port", + .owner = THIS_MODULE, + .dev_groups = rio_mport_groups, }; +EXPORT_SYMBOL_GPL(rio_mport_class); struct bus_type rio_bus_type = { .name = "rapidio", @@ -233,14 +235,20 @@ struct bus_type rio_bus_type = { /** * rio_bus_init - Register the RapidIO bus with the device model * - * Registers the RIO bus device and RIO bus type with the Linux + * Registers the RIO mport device class and RIO bus type with the Linux * device model. */ static int __init rio_bus_init(void) { - if (device_register(&rio_bus) < 0) - printk("RIO: failed to register RIO bus device\n"); - return bus_register(&rio_bus_type); + int ret; + + ret = class_register(&rio_mport_class); + if (!ret) { + ret = bus_register(&rio_bus_type); + if (ret) + class_unregister(&rio_mport_class); + } + return ret; } postcore_initcall(rio_bus_init); diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c index d3a6539a77c..47a1b2ea76c 100644 --- a/drivers/rapidio/rio-scan.c +++ b/drivers/rapidio/rio-scan.c @@ -461,6 +461,7 @@ static struct rio_dev *rio_setup_device(struct rio_net *net, rdev->comp_tag & RIO_CTAG_UDEVID); } + rdev->dev.parent = &port->dev; rio_attach_device(rdev); device_initialize(&rdev->dev); diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c index e0221c6d0cc..cdb005c0094 100644 --- a/drivers/rapidio/rio-sysfs.c +++ b/drivers/rapidio/rio-sysfs.c @@ -341,3 +341,43 @@ const struct attribute_group *rio_bus_groups[] = { &rio_bus_group, NULL, }; + +static ssize_t +port_destid_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct rio_mport *mport = to_rio_mport(dev); + + if (mport) + return sprintf(buf, "0x%04x\n", mport->host_deviceid); + else + return -ENODEV; +} +static DEVICE_ATTR_RO(port_destid); + +static ssize_t sys_size_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct rio_mport *mport = to_rio_mport(dev); + + if (mport) + return sprintf(buf, "%u\n", mport->sys_size); + else + return -ENODEV; +} +static DEVICE_ATTR_RO(sys_size); + +static struct attribute *rio_mport_attrs[] = { + &dev_attr_port_destid.attr, + &dev_attr_sys_size.attr, + NULL, +}; + +static const struct attribute_group rio_mport_group = { + .attrs = rio_mport_attrs, +}; + +const struct attribute_group *rio_mport_groups[] = { + &rio_mport_group, + NULL, +}; diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c index 2e8a20cac58..a54ba0494dd 100644 --- a/drivers/rapidio/rio.c +++ b/drivers/rapidio/rio.c @@ -1884,6 +1884,7 @@ static int rio_get_hdid(int index) int rio_register_mport(struct rio_mport *port) { struct rio_scan_node *scan = NULL; + int res = 0; if (next_portid >= RIO_MAX_MPORTS) { pr_err("RIO: reached specified max number of mports\n"); @@ -1894,6 +1895,16 @@ int rio_register_mport(struct rio_mport *port) port->host_deviceid = rio_get_hdid(port->id); port->nscan = NULL; + dev_set_name(&port->dev, "rapidio%d", port->id); + port->dev.class = &rio_mport_class; + + res = device_register(&port->dev); + if (res) + dev_err(&port->dev, "RIO: mport%d registration failed ERR=%d\n", + port->id, res); + else + dev_dbg(&port->dev, "RIO: mport%d registered\n", port->id); + mutex_lock(&rio_mport_list_lock); list_add_tail(&port->node, &rio_mports); diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h index 5f99d22ad0b..2d0550e08ea 100644 --- a/drivers/rapidio/rio.h +++ b/drivers/rapidio/rio.h @@ -50,6 +50,7 @@ extern int rio_mport_scan(int mport_id); /* Structures internal to the RIO core code */ extern const struct attribute_group *rio_dev_groups[]; extern const struct attribute_group *rio_bus_groups[]; +extern const struct attribute_group *rio_mport_groups[]; #define RIO_GET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16)) #define RIO_SET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x000000ff) << 16)) diff --git a/include/linux/rio.h b/include/linux/rio.h index b71d5738e68..6bda06f2193 100644 --- a/include/linux/rio.h +++ b/include/linux/rio.h @@ -83,7 +83,7 @@ #define RIO_CTAG_UDEVID 0x0001ffff /* Unique device identifier */ extern struct bus_type rio_bus_type; -extern struct device rio_bus; +extern struct class rio_mport_class; struct rio_mport; struct rio_dev; @@ -201,6 +201,7 @@ struct rio_dev { #define rio_dev_f(n) list_entry(n, struct rio_dev, net_list) #define to_rio_dev(n) container_of(n, struct rio_dev, dev) #define sw_to_rio_dev(n) container_of(n, struct rio_dev, rswitch[0]) +#define to_rio_mport(n) container_of(n, struct rio_mport, dev) /** * struct rio_msg - RIO message event @@ -248,6 +249,7 @@ enum rio_phy_type { * @phy_type: RapidIO phy type * @phys_efptr: RIO port extended features pointer * @name: Port name string + * @dev: device structure associated with an mport * @priv: Master port private data * @dma: DMA device associated with mport * @nscan: RapidIO network enumeration/discovery operations @@ -272,6 +274,7 @@ struct rio_mport { enum rio_phy_type phy_type; /* RapidIO phy type */ u32 phys_efptr; unsigned char name[RIO_MAX_MPORT_NAME]; + struct device dev; void *priv; /* Master port private data */ #ifdef CONFIG_RAPIDIO_DMA_ENGINE struct dma_device dma; |