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stand: Implement ofw disk print routine

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Have lsdev show openfirmware devices.

Sponsored by:		Netflix
Differential Revision:	https://reviews.freebsd.org/D37555
This commit is contained in:
Warner Losh 2022-11-30 15:09:56 -07:00
parent a07cef5a73
commit 40d340acb9
1 changed files with 24 additions and 0 deletions
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24
stand/libofw/ofw_disk.c
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@ -184,6 +184,30 @@ ofwd_ioctl(struct open_file *f, u_long cmd, void *data)
static int
ofwd_print(int verbose __unused)
{
uintmax_t block_size, n;
int ret;
char line[80];
/*
* We don't have a list of devices since we don't parse the whole OFW
* tree to find them. Instead, if we have an open device print info
* about it. Otherwise say we can't. Makes lsdev nicer.
*/
if ((ret = pager_output("block devices:\n")) != 0)
return (ret);
if (kdp != NULL) {
block_size = OF_block_size(kdp->d_handle);
n = OF_blocks(kdp->d_handle);
snprintf(line, sizeof(line),
" %s: OFW block device (%ju X %ju): %ju bytes\n",
kdp->d_path, n, block_size, n * block_size);
if ((ret = pager_output(line)) != 0)
return (ret);
} else {
if ((ret = pager_output(" none are open, so no info\n")) != 0)
return (ret);
}
return (0);
}
static char *