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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-04 04:12:13 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-04 04:12:13 +0400 |
commit | 7f0ef0267e20d62d45d527911a993b1e998f4968 (patch) | |
tree | de51abc7da5903f59d83e23937f22420164c9477 /drivers/rapidio/switches/idt_gen2.c | |
parent | 862f0012549110d6f2586bf54b52ed4540cbff3a (diff) | |
parent | 9307c29524502c21f0e8a6d96d850b2f5bc0bd9a (diff) | |
download | linux-7f0ef0267e20d62d45d527911a993b1e998f4968.tar.xz |
Merge branch 'akpm' (updates from Andrew Morton)
Merge first patch-bomb from Andrew Morton:
- various misc bits
- I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been
distracted. There has been quite a bit of activity.
- About half the MM queue
- Some backlight bits
- Various lib/ updates
- checkpatch updates
- zillions more little rtc patches
- ptrace
- signals
- exec
- procfs
- rapidio
- nbd
- aoe
- pps
- memstick
- tools/testing/selftests updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (445 commits)
tools/testing/selftests: don't assume the x bit is set on scripts
selftests: add .gitignore for kcmp
selftests: fix clean target in kcmp Makefile
selftests: add .gitignore for vm
selftests: add hugetlbfstest
self-test: fix make clean
selftests: exit 1 on failure
kernel/resource.c: remove the unneeded assignment in function __find_resource
aio: fix wrong comment in aio_complete()
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
drivers/memstick/host/r592.c: convert to module_pci_driver
drivers/memstick/host/jmb38x_ms: convert to module_pci_driver
pps-gpio: add device-tree binding and support
drivers/pps/clients/pps-gpio.c: convert to module_platform_driver
drivers/pps/clients/pps-gpio.c: convert to devm_* helpers
drivers/parport/share.c: use kzalloc
Documentation/accounting/getdelays.c: avoid strncpy in accounting tool
aoe: update internal version number to v83
aoe: update copyright date
aoe: perform I/O completions in parallel
...
Diffstat (limited to 'drivers/rapidio/switches/idt_gen2.c')
-rw-r--r-- | drivers/rapidio/switches/idt_gen2.c | 98 |
1 files changed, 80 insertions, 18 deletions
diff --git a/drivers/rapidio/switches/idt_gen2.c b/drivers/rapidio/switches/idt_gen2.c index 809b7a3336ba..00a71ebb5cac 100644 --- a/drivers/rapidio/switches/idt_gen2.c +++ b/drivers/rapidio/switches/idt_gen2.c @@ -11,6 +11,7 @@ */ #include <linux/stat.h> +#include <linux/module.h> #include <linux/rio.h> #include <linux/rio_drv.h> #include <linux/rio_ids.h> @@ -387,12 +388,12 @@ idtg2_show_errlog(struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR(errlog, S_IRUGO, idtg2_show_errlog, NULL); -static int idtg2_sysfs(struct rio_dev *rdev, int create) +static int idtg2_sysfs(struct rio_dev *rdev, bool create) { struct device *dev = &rdev->dev; int err = 0; - if (create == RIO_SW_SYSFS_CREATE) { + if (create) { /* Initialize sysfs entries */ err = device_create_file(dev, &dev_attr_errlog); if (err) @@ -403,29 +404,90 @@ static int idtg2_sysfs(struct rio_dev *rdev, int create) return err; } -static int idtg2_switch_init(struct rio_dev *rdev, int do_enum) +static struct rio_switch_ops idtg2_switch_ops = { + .owner = THIS_MODULE, + .add_entry = idtg2_route_add_entry, + .get_entry = idtg2_route_get_entry, + .clr_table = idtg2_route_clr_table, + .set_domain = idtg2_set_domain, + .get_domain = idtg2_get_domain, + .em_init = idtg2_em_init, + .em_handle = idtg2_em_handler, +}; + +static int idtg2_probe(struct rio_dev *rdev, const struct rio_device_id *id) { pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev)); - rdev->rswitch->add_entry = idtg2_route_add_entry; - rdev->rswitch->get_entry = idtg2_route_get_entry; - rdev->rswitch->clr_table = idtg2_route_clr_table; - rdev->rswitch->set_domain = idtg2_set_domain; - rdev->rswitch->get_domain = idtg2_get_domain; - rdev->rswitch->em_init = idtg2_em_init; - rdev->rswitch->em_handle = idtg2_em_handler; - rdev->rswitch->sw_sysfs = idtg2_sysfs; - - if (do_enum) { + + spin_lock(&rdev->rswitch->lock); + + if (rdev->rswitch->ops) { + spin_unlock(&rdev->rswitch->lock); + return -EINVAL; + } + + rdev->rswitch->ops = &idtg2_switch_ops; + + if (rdev->do_enum) { /* Ensure that default routing is disabled on startup */ rio_write_config_32(rdev, RIO_STD_RTE_DEFAULT_PORT, IDT_NO_ROUTE); } + /* Create device-specific sysfs attributes */ + idtg2_sysfs(rdev, true); + + spin_unlock(&rdev->rswitch->lock); return 0; } -DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1848, idtg2_switch_init); -DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1616, idtg2_switch_init); -DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTVPS1616, idtg2_switch_init); -DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTSPS1616, idtg2_switch_init); -DECLARE_RIO_SWITCH_INIT(RIO_VID_IDT, RIO_DID_IDTCPS1432, idtg2_switch_init); +static void idtg2_remove(struct rio_dev *rdev) +{ + pr_debug("RIO: %s for %s\n", __func__, rio_name(rdev)); + spin_lock(&rdev->rswitch->lock); + if (rdev->rswitch->ops != &idtg2_switch_ops) { + spin_unlock(&rdev->rswitch->lock); + return; + } + rdev->rswitch->ops = NULL; + + /* Remove device-specific sysfs attributes */ + idtg2_sysfs(rdev, false); + + spin_unlock(&rdev->rswitch->lock); +} + +static struct rio_device_id idtg2_id_table[] = { + {RIO_DEVICE(RIO_DID_IDTCPS1848, RIO_VID_IDT)}, + {RIO_DEVICE(RIO_DID_IDTCPS1616, RIO_VID_IDT)}, + {RIO_DEVICE(RIO_DID_IDTVPS1616, RIO_VID_IDT)}, + {RIO_DEVICE(RIO_DID_IDTSPS1616, RIO_VID_IDT)}, + {RIO_DEVICE(RIO_DID_IDTCPS1432, RIO_VID_IDT)}, + { 0, } /* terminate list */ +}; + +static struct rio_driver idtg2_driver = { + .name = "idt_gen2", + .id_table = idtg2_id_table, + .probe = idtg2_probe, + .remove = idtg2_remove, +}; + +static int __init idtg2_init(void) +{ + return rio_register_driver(&idtg2_driver); +} + +static void __exit idtg2_exit(void) +{ + pr_debug("RIO: %s\n", __func__); + rio_unregister_driver(&idtg2_driver); + pr_debug("RIO: %s done\n", __func__); +} + +device_initcall(idtg2_init); +module_exit(idtg2_exit); + +MODULE_DESCRIPTION("IDT CPS Gen.2 Serial RapidIO switch family driver"); +MODULE_AUTHOR("Integrated Device Technology, Inc."); +MODULE_LICENSE("GPL"); |