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authorAndrew Rybchenko <arybchik@FreeBSD.org>2016-05-11 06:15:07 +0000
committerAndrew Rybchenko <arybchik@FreeBSD.org>2016-05-11 06:15:07 +0000
commitf49cb708cd405a7a0d66a8b30a7e29c841867652 (patch)
tree989adad70035b45ef3725f9b22c9375874cf9721 /sys/dev/sfxge/common
parent11a55b7340bc50ecf7680d487a7aacbaed2739a3 (diff)
downloadsrc-f49cb708cd405a7a0d66a8b30a7e29c841867652.tar.gz
src-f49cb708cd405a7a0d66a8b30a7e29c841867652.zip
sfxge(4): add TLV format buffer manipulation functions for V3 licensing
The licensing partition for V3 licensing will use the standard TLV format, so Medford licensing operations on the staging buffer are implemented using the TLV functions. Submitted by: Richard Houldsworth <rhouldsworth at solarflare.com> Sponsored by: Solarflare Communications, Inc. MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D6288
Notes
Notes: svn path=/head/; revision=299402
Diffstat (limited to 'sys/dev/sfxge/common')
-rw-r--r--sys/dev/sfxge/common/hunt_impl.h76
-rw-r--r--sys/dev/sfxge/common/hunt_nvram.c352
2 files changed, 428 insertions, 0 deletions
diff --git a/sys/dev/sfxge/common/hunt_impl.h b/sys/dev/sfxge/common/hunt_impl.h
index b33163277490..cd7d49e58395 100644
--- a/sys/dev/sfxge/common/hunt_impl.h
+++ b/sys/dev/sfxge/common/hunt_impl.h
@@ -466,6 +466,82 @@ ef10_nvram_buffer_validate(
caddr_t bufferp,
__in size_t buffer_size);
+extern __checkReturn efx_rc_t
+ef10_nvram_buffer_create(
+ __in efx_nic_t *enp,
+ __in uint16_t partn_type,
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size);
+
+extern __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
+ );
+
+extern __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
+ );
+
+extern __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
+ );
+
+extern __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
+ );
+
+extern __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
+ );
+
+extern __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
+ );
+
+extern __checkReturn efx_rc_t
+ef10_nvram_buffer_finish(
+ __in_bcount(buffer_size)
+ caddr_t bufferp,
+ __in size_t buffer_size
+ );
+
#endif /* EFSYS_OPT_NVRAM */
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