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sfxge: erase nvram partitions in chunks equal to their erase size

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The erase size is reported by the nvram info command.

Submitted by:   Paul Fox <pfox at solarflare.com>
Reviewed by:    gnn
Sponsored by:   Solarflare Communications, Inc.
MFC after:      2 days
Differential Revision: https://reviews.freebsd.org/D4386
This commit is contained in:
Andrew Rybchenko 2015-12-05 17:11:14 +00:00
parent 3f07044f5b
commit af128f2270
1 changed files with 26 additions and 1 deletions
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27
sys/dev/sfxge/common/hunt_nvram.c
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@ -1363,12 +1363,37 @@ hunt_nvram_partn_erase(
__in size_t size)
{
efx_rc_t rc;
uint32_t erase_size;
if ((rc = efx_mcdi_nvram_erase(enp, partn, offset, size)) != 0)
if ((rc = efx_mcdi_nvram_info(enp, partn, NULL, NULL,
&erase_size, NULL)) != 0)
goto fail1;
if (erase_size == 0) {
if ((rc = efx_mcdi_nvram_erase(enp, partn, offset, size)) != 0)
goto fail2;
} else {
if (size % erase_size != 0) {
rc = EINVAL;
goto fail3;
}
while (size > 0) {
if ((rc = efx_mcdi_nvram_erase(enp, partn, offset,
erase_size)) != 0)
goto fail4;
offset += erase_size;
size -= erase_size;
}
}
return (0);
fail4:
EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);