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| author | Gal Pressman <galpress@amazon.com> | 2019-05-01 13:48:13 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-05-01 12:29:28 -0400 |
| commit | 923abb9d797ba078f4e9eb3734dd71be5f567a2a (patch) | |
| tree | 31db9356a4c325ce3e1e106bb64b436b639a2e53 /lib | |
| parent | b9b0f34531e0f8ff7fd0b78adfbc0e8209900f83 (diff) | |
| download | lwn-923abb9d797ba078f4e9eb3734dd71be5f567a2a.tar.gz lwn-923abb9d797ba078f4e9eb3734dd71be5f567a2a.zip | |
RDMA/core: Introduce RDMA subsystem ibdev_* print functions
Similarly to dev/netdev/etc printk helpers, add standard printk helpers
for the RDMA subsystem.
Example output:
efa 0000:00:06.0 efa_0: Hello World!
efa_0: Hello World! (no parent device set)
(NULL ib_device): Hello World! (ibdev is NULL)
Cc: Jason Baron <jbaron@akamai.com>
Suggested-by: Jason Gunthorpe <jgg@ziepe.ca>
Suggested-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/dynamic_debug.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 7bdf98c37e91..8a16c2d498e9 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -37,6 +37,8 @@ #include <linux/device.h> #include <linux/netdevice.h> +#include <rdma/ib_verbs.h> + extern struct _ddebug __start___verbose[]; extern struct _ddebug __stop___verbose[]; @@ -636,6 +638,41 @@ EXPORT_SYMBOL(__dynamic_netdev_dbg); #endif +#if IS_ENABLED(CONFIG_INFINIBAND) + +void __dynamic_ibdev_dbg(struct _ddebug *descriptor, + const struct ib_device *ibdev, const char *fmt, ...) +{ + struct va_format vaf; + va_list args; + + va_start(args, fmt); + + vaf.fmt = fmt; + vaf.va = &args; + + if (ibdev && ibdev->dev.parent) { + char buf[PREFIX_SIZE]; + + dev_printk_emit(LOGLEVEL_DEBUG, ibdev->dev.parent, + "%s%s %s %s: %pV", + dynamic_emit_prefix(descriptor, buf), + dev_driver_string(ibdev->dev.parent), + dev_name(ibdev->dev.parent), + dev_name(&ibdev->dev), + &vaf); + } else if (ibdev) { + printk(KERN_DEBUG "%s: %pV", dev_name(&ibdev->dev), &vaf); + } else { + printk(KERN_DEBUG "(NULL ib_device): %pV", &vaf); + } + + va_end(args); +} +EXPORT_SYMBOL(__dynamic_ibdev_dbg); + +#endif + #define DDEBUG_STRING_SIZE 1024 static __initdata char ddebug_setup_string[DDEBUG_STRING_SIZE]; |