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path: root/sys/dev/sfxge/common/hunt_nvram.c
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Diffstat (limited to 'sys/dev/sfxge/common/hunt_nvram.c')
-rw-r--r--sys/dev/sfxge/common/hunt_nvram.c352
1 files changed, 352 insertions, 0 deletions
diff --git a/sys/dev/sfxge/common/hunt_nvram.c b/sys/dev/sfxge/common/hunt_nvram.c
index f791a850e2a6..e124c3eb1855 100644
--- a/sys/dev/sfxge/common/hunt_nvram.c
+++ b/sys/dev/sfxge/common/hunt_nvram.c
@@ -757,6 +757,358 @@ fail1:
return (rc);
}
+
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_create(
+ __in efx_nic_t *enp,
+ __in uint16_t partn_type,
+ __in_bcount(partn_size) caddr_t partn_data,
+ __in size_t partn_size)
+{
+ uint32_t *buf = (uint32_t *)partn_data;
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+ struct tlv_partition_header header;
+ struct tlv_partition_trailer trailer;
+
+ unsigned min_buf_size = sizeof (struct tlv_partition_header) +
+ sizeof (struct tlv_partition_trailer);
+ if (partn_size < min_buf_size) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ memset(buf, 0xff, partn_size);
+
+ tlv_init_block(buf);
+ if ((rc = tlv_init_cursor(&cursor, buf,
+ (uint32_t *)((uint8_t *)buf + partn_size),
+ buf)) != 0) {
+ goto fail2;
+ }
+
+ header.tag = __CPU_TO_LE_32(TLV_TAG_PARTITION_HEADER);
+ header.length = __CPU_TO_LE_32(sizeof (header) - 8);
+ header.type_id = __CPU_TO_LE_16(partn_type);
+ header.preset = 0;
+ header.generation = __CPU_TO_LE_32(1);
+ header.total_length = 0; /* This will be fixed below. */
+ if ((rc = tlv_insert(
+ &cursor, TLV_TAG_PARTITION_HEADER,
+ (uint8_t *)&header.type_id, sizeof (header) - 8)) != 0)
+ goto fail3;
+ if ((rc = tlv_advance(&cursor)) != 0)
+ goto fail4;
+
+ trailer.tag = __CPU_TO_LE_32(TLV_TAG_PARTITION_TRAILER);
+ trailer.length = __CPU_TO_LE_32(sizeof (trailer) - 8);
+ trailer.generation = header.generation;
+ trailer.checksum = 0; /* This will be fixed below. */
+ if ((rc = tlv_insert(&cursor, TLV_TAG_PARTITION_TRAILER,
+ (uint8_t *)&trailer.generation, sizeof (trailer) - 8)) != 0)
+ goto fail5;
+
+ if ((rc = tlv_update_partition_len_and_cks(&cursor)) != 0)
+ goto fail6;
+
+ /* Check that the partition is valid. */
+ if ((rc = ef10_nvram_buffer_validate(enp, partn_type,
+ partn_data, partn_size)) != 0)
+ goto fail7;
+
+ return (0);
+
+fail7:
+ EFSYS_PROBE(fail7);
+fail6:
+ EFSYS_PROBE(fail6);
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static uint32_t
+byte_offset(
+ __in uint32_t *position,
+ __in uint32_t *base)
+{
+ return (uint32_t)((uint8_t *)position - (uint8_t *)base);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_find_item_start(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __out uint32_t *startp)
+{
+ // Read past partition header to find start address of the first key
+ tlv_cursor_t cursor;
+ efx_rc_t rc;
+
+ /* A PARTITION_HEADER tag must be the first item (at offset zero) */
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)bufferp,
+ buffer_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ if ((rc = tlv_advance(&cursor)) != 0) {
+ rc = EINVAL;
+ goto fail3;
+ }
+ *startp = byte_offset(cursor.current, cursor.block);
+
+ if ((rc = tlv_require_end(&cursor)) != 0)
+ goto fail4;
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_find_end(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __in uint32_t offset,
+ __out uint32_t *endp)
+{
+ // Read to end of partition
+ tlv_cursor_t cursor;
+ efx_rc_t rc;
+
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)bufferp,
+ buffer_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+
+ if ((rc = tlv_require_end(&cursor)) != 0)
+ goto fail2;
+
+ *endp = byte_offset(tlv_last_segment_end(&cursor)+1, cursor.block);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn __success(return != B_FALSE) boolean_t
+ef10_nvram_buffer_find_item(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __in uint32_t offset,
+ __out uint32_t *startp,
+ __out uint32_t *lengthp)
+{
+ // Find TLV at offset and return key start and length
+ tlv_cursor_t cursor;
+ uint8_t *key;
+ uint32_t tag;
+
+ if (tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+ buffer_size, offset) != 0) {
+ return (B_FALSE);
+ }
+
+ while ((key = tlv_item(&cursor)) != NULL) {
+ tag = tlv_tag(&cursor);
+ if (tag == TLV_TAG_PARTITION_HEADER ||
+ tag == TLV_TAG_PARTITION_TRAILER) {
+ if (tlv_advance(&cursor) != 0) {
+ break;
+ }
+ continue;
+ }
+ *startp = byte_offset(cursor.current, cursor.block);
+ *lengthp = byte_offset(tlv_next_item_ptr(&cursor),
+ cursor.current);
+ return (B_TRUE);
+ }
+
+ return (B_FALSE);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_get_item(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __in uint32_t offset,
+ __in uint32_t length,
+ __out_bcount_part(item_max_size, *lengthp)
+ caddr_t itemp,
+ __in size_t item_max_size,
+ __out uint32_t *lengthp)
+{
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+ uint32_t item_length;
+
+ if (item_max_size < length) {
+ rc = ENOSPC;
+ goto fail1;
+ }
+
+ if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+ buffer_size, offset)) != 0) {
+ goto fail2;
+ }
+
+ item_length = tlv_length(&cursor);
+ if (length < item_length) {
+ rc = ENOSPC;
+ goto fail3;
+ }
+ memcpy(itemp, tlv_value(&cursor), item_length);
+
+ *lengthp = item_length;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_insert_item(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __in uint32_t offset,
+ __in_bcount(length) caddr_t keyp,
+ __in uint32_t length,
+ __out uint32_t *lengthp)
+{
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+
+ if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+ buffer_size, offset)) != 0) {
+ goto fail1;
+ }
+
+ rc = tlv_insert(&cursor, TLV_TAG_LICENSE, keyp, length);
+
+ if (rc != 0) {
+ goto fail2;
+ }
+
+ *lengthp = byte_offset(tlv_next_item_ptr(&cursor),
+ cursor.current);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_delete_item(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size,
+ __in uint32_t offset,
+ __in uint32_t length,
+ __in uint32_t end)
+{
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+
+ if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+ buffer_size, offset)) != 0) {
+ goto fail1;
+ }
+
+ if ((rc = tlv_delete(&cursor)) != 0)
+ goto fail2;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_finish(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size)
+{
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)bufferp,
+ buffer_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+
+ if ((rc = tlv_require_end(&cursor)) != 0)
+ goto fail2;
+
+ if ((rc = tlv_update_partition_len_and_cks(&cursor)) != 0)
+ goto fail3;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+
/*
* Read and validate a segment from a partition. A segment is a complete
* tlv chain between PARTITION_HEADER and PARTITION_END tags. There may
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 04:20:22 +0000