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RDMA/core: Introduce RDMA subsystem ibdev_* print functions

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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>
This commit is contained in:
Gal Pressman
2019-05-01 13:48:13 +03:00
committed by Doug Ledford
parent b9b0f34531
commit 923abb9d79
4 changed files with 138 additions and 0 deletions
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37
lib/dynamic_debug.c
View File

@@ -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];