--- /dev/null
+/*
+ * Copyright (c) 2012-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+#if EFSYS_OPT_VPD || EFSYS_OPT_NVRAM
+
+#include "ef10_tlv_layout.h"
+
+/* Cursor for TLV partition format */
+typedef struct tlv_cursor_s {
+ uint32_t *block; /* Base of data block */
+ uint32_t *current; /* Cursor position */
+ uint32_t *end; /* End tag position */
+ uint32_t *limit; /* Last dword of data block */
+} tlv_cursor_t;
+
+typedef struct nvram_partition_s {
+ uint16_t type;
+ uint8_t chip_select;
+ uint8_t flags;
+ /*
+ * The full length of the NVRAM partition.
+ * This is different from tlv_partition_header.total_length,
+ * which can be smaller.
+ */
+ uint32_t length;
+ uint32_t erase_size;
+ uint32_t *data;
+ tlv_cursor_t tlv_cursor;
+} nvram_partition_t;
+
+
+static __checkReturn efx_rc_t
+tlv_validate_state(
+ __inout tlv_cursor_t *cursor);
+
+
+static void
+tlv_init_block(
+ __out uint32_t *block)
+{
+ *block = __CPU_TO_LE_32(TLV_TAG_END);
+}
+
+static uint32_t
+tlv_tag(
+ __in tlv_cursor_t *cursor)
+{
+ uint32_t dword, tag;
+
+ dword = cursor->current[0];
+ tag = __LE_TO_CPU_32(dword);
+
+ return (tag);
+}
+
+static size_t
+tlv_length(
+ __in tlv_cursor_t *cursor)
+{
+ uint32_t dword, length;
+
+ if (tlv_tag(cursor) == TLV_TAG_END)
+ return (0);
+
+ dword = cursor->current[1];
+ length = __LE_TO_CPU_32(dword);
+
+ return ((size_t)length);
+}
+
+static uint8_t *
+tlv_value(
+ __in tlv_cursor_t *cursor)
+{
+ if (tlv_tag(cursor) == TLV_TAG_END)
+ return (NULL);
+
+ return ((uint8_t *)(&cursor->current[2]));
+}
+
+static uint8_t *
+tlv_item(
+ __in tlv_cursor_t *cursor)
+{
+ if (tlv_tag(cursor) == TLV_TAG_END)
+ return (NULL);
+
+ return ((uint8_t *)cursor->current);
+}
+
+/*
+ * TLV item DWORD length is tag + length + value (rounded up to DWORD)
+ * equivalent to tlv_n_words_for_len in mc-comms tlv.c
+ */
+#define TLV_DWORD_COUNT(length) \
+ (1 + 1 + (((length) + sizeof (uint32_t) - 1) / sizeof (uint32_t)))
+
+
+static uint32_t *
+tlv_next_item_ptr(
+ __in tlv_cursor_t *cursor)
+{
+ uint32_t length;
+
+ length = tlv_length(cursor);
+
+ return (cursor->current + TLV_DWORD_COUNT(length));
+}
+
+static __checkReturn efx_rc_t
+tlv_advance(
+ __inout tlv_cursor_t *cursor)
+{
+ efx_rc_t rc;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ if (cursor->current == cursor->end) {
+ /* No more tags after END tag */
+ cursor->current = NULL;
+ rc = ENOENT;
+ goto fail2;
+ }
+
+ /* Advance to next item and validate */
+ cursor->current = tlv_next_item_ptr(cursor);
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail3;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static efx_rc_t
+tlv_rewind(
+ __in tlv_cursor_t *cursor)
+{
+ efx_rc_t rc;
+
+ cursor->current = cursor->block;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static efx_rc_t
+tlv_find(
+ __inout tlv_cursor_t *cursor,
+ __in uint32_t tag)
+{
+ efx_rc_t rc;
+
+ rc = tlv_rewind(cursor);
+ while (rc == 0) {
+ if (tlv_tag(cursor) == tag)
+ break;
+
+ rc = tlv_advance(cursor);
+ }
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+tlv_validate_state(
+ __inout tlv_cursor_t *cursor)
+{
+ efx_rc_t rc;
+
+ /* Check cursor position */
+ if (cursor->current < cursor->block) {
+ rc = EINVAL;
+ goto fail1;
+ }
+ if (cursor->current > cursor->limit) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ if (tlv_tag(cursor) != TLV_TAG_END) {
+ /* Check current item has space for tag and length */
+ if (cursor->current > (cursor->limit - 2)) {
+ cursor->current = NULL;
+ rc = EFAULT;
+ goto fail3;
+ }
+
+ /* Check we have value data for current item and another tag */
+ if (tlv_next_item_ptr(cursor) > (cursor->limit - 1)) {
+ cursor->current = NULL;
+ rc = EFAULT;
+ 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);
+}
+
+static efx_rc_t
+tlv_init_cursor(
+ __out tlv_cursor_t *cursor,
+ __in uint32_t *block,
+ __in uint32_t *limit,
+ __in uint32_t *current)
+{
+ cursor->block = block;
+ cursor->limit = limit;
+
+ cursor->current = current;
+ cursor->end = NULL;
+
+ return (tlv_validate_state(cursor));
+}
+
+static __checkReturn efx_rc_t
+tlv_init_cursor_from_size(
+ __out tlv_cursor_t *cursor,
+ __in_bcount(size)
+ uint8_t *block,
+ __in size_t size)
+{
+ uint32_t *limit;
+ limit = (uint32_t *)(block + size - sizeof (uint32_t));
+ return (tlv_init_cursor(cursor, (uint32_t *)block,
+ limit, (uint32_t *)block));
+}
+
+static __checkReturn efx_rc_t
+tlv_init_cursor_at_offset(
+ __out tlv_cursor_t *cursor,
+ __in_bcount(size)
+ uint8_t *block,
+ __in size_t size,
+ __in size_t offset)
+{
+ uint32_t *limit;
+ uint32_t *current;
+ limit = (uint32_t *)(block + size - sizeof (uint32_t));
+ current = (uint32_t *)(block + offset);
+ return (tlv_init_cursor(cursor, (uint32_t *)block, limit, current));
+}
+
+static __checkReturn efx_rc_t
+tlv_require_end(
+ __inout tlv_cursor_t *cursor)
+{
+ uint32_t *pos;
+ efx_rc_t rc;
+
+ if (cursor->end == NULL) {
+ pos = cursor->current;
+ if ((rc = tlv_find(cursor, TLV_TAG_END)) != 0)
+ goto fail1;
+
+ cursor->end = cursor->current;
+ cursor->current = pos;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static size_t
+tlv_block_length_used(
+ __inout tlv_cursor_t *cursor)
+{
+ efx_rc_t rc;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ if ((rc = tlv_require_end(cursor)) != 0)
+ goto fail2;
+
+ /* Return space used (including the END tag) */
+ return (cursor->end + 1 - cursor->block) * sizeof (uint32_t);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (0);
+}
+
+static uint32_t *
+tlv_last_segment_end(
+ __in tlv_cursor_t *cursor)
+{
+ tlv_cursor_t segment_cursor;
+ uint32_t *last_segment_end = cursor->block;
+ uint32_t *segment_start = cursor->block;
+
+ /*
+ * Go through each segment and check that it has an end tag. If there
+ * is no end tag then the previous segment was the last valid one,
+ * so return the pointer to its end tag.
+ */
+ for (;;) {
+ if (tlv_init_cursor(&segment_cursor, segment_start,
+ cursor->limit, segment_start) != 0)
+ break;
+ if (tlv_require_end(&segment_cursor) != 0)
+ break;
+ last_segment_end = segment_cursor.end;
+ segment_start = segment_cursor.end + 1;
+ }
+
+ return (last_segment_end);
+}
+
+
+static uint32_t *
+tlv_write(
+ __in tlv_cursor_t *cursor,
+ __in uint32_t tag,
+ __in_bcount(size) uint8_t *data,
+ __in size_t size)
+{
+ uint32_t len = size;
+ uint32_t *ptr;
+
+ ptr = cursor->current;
+
+ *ptr++ = __CPU_TO_LE_32(tag);
+ *ptr++ = __CPU_TO_LE_32(len);
+
+ if (len > 0) {
+ ptr[(len - 1) / sizeof (uint32_t)] = 0;
+ memcpy(ptr, data, len);
+ ptr += P2ROUNDUP(len, sizeof (uint32_t)) / sizeof (*ptr);
+ }
+
+ return (ptr);
+}
+
+static __checkReturn efx_rc_t
+tlv_insert(
+ __inout tlv_cursor_t *cursor,
+ __in uint32_t tag,
+ __in_bcount(size)
+ uint8_t *data,
+ __in size_t size)
+{
+ unsigned int delta;
+ uint32_t *last_segment_end;
+ efx_rc_t rc;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ if ((rc = tlv_require_end(cursor)) != 0)
+ goto fail2;
+
+ if (tag == TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail3;
+ }
+
+ last_segment_end = tlv_last_segment_end(cursor);
+
+ delta = TLV_DWORD_COUNT(size);
+ if (last_segment_end + 1 + delta > cursor->limit) {
+ rc = ENOSPC;
+ goto fail4;
+ }
+
+ /* Move data up: new space at cursor->current */
+ memmove(cursor->current + delta, cursor->current,
+ (last_segment_end + 1 - cursor->current) * sizeof (uint32_t));
+
+ /* Adjust the end pointer */
+ cursor->end += delta;
+
+ /* Write new TLV item */
+ tlv_write(cursor, tag, data, size);
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+tlv_delete(
+ __inout tlv_cursor_t *cursor)
+{
+ unsigned int delta;
+ uint32_t *last_segment_end;
+ efx_rc_t rc;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ if (tlv_tag(cursor) == TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ delta = TLV_DWORD_COUNT(tlv_length(cursor));
+
+ if ((rc = tlv_require_end(cursor)) != 0)
+ goto fail3;
+
+ last_segment_end = tlv_last_segment_end(cursor);
+
+ /* Shuffle things down, destroying the item at cursor->current */
+ memmove(cursor->current, cursor->current + delta,
+ (last_segment_end + 1 - cursor->current) * sizeof (uint32_t));
+ /* Zero the new space at the end of the TLV chain */
+ memset(last_segment_end + 1 - delta, 0, delta * sizeof (uint32_t));
+ /* Adjust the end pointer */
+ cursor->end -= delta;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+tlv_modify(
+ __inout tlv_cursor_t *cursor,
+ __in uint32_t tag,
+ __in_bcount(size)
+ uint8_t *data,
+ __in size_t size)
+{
+ uint32_t *pos;
+ unsigned int old_ndwords;
+ unsigned int new_ndwords;
+ unsigned int delta;
+ uint32_t *last_segment_end;
+ efx_rc_t rc;
+
+ if ((rc = tlv_validate_state(cursor)) != 0)
+ goto fail1;
+
+ if (tlv_tag(cursor) == TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail2;
+ }
+ if (tlv_tag(cursor) != tag) {
+ rc = EINVAL;
+ goto fail3;
+ }
+
+ old_ndwords = TLV_DWORD_COUNT(tlv_length(cursor));
+ new_ndwords = TLV_DWORD_COUNT(size);
+
+ if ((rc = tlv_require_end(cursor)) != 0)
+ goto fail4;
+
+ last_segment_end = tlv_last_segment_end(cursor);
+
+ if (new_ndwords > old_ndwords) {
+ /* Expand space used for TLV item */
+ delta = new_ndwords - old_ndwords;
+ pos = cursor->current + old_ndwords;
+
+ if (last_segment_end + 1 + delta > cursor->limit) {
+ rc = ENOSPC;
+ goto fail5;
+ }
+
+ /* Move up: new space at (cursor->current + old_ndwords) */
+ memmove(pos + delta, pos,
+ (last_segment_end + 1 - pos) * sizeof (uint32_t));
+
+ /* Adjust the end pointer */
+ cursor->end += delta;
+
+ } else if (new_ndwords < old_ndwords) {
+ /* Shrink space used for TLV item */
+ delta = old_ndwords - new_ndwords;
+ pos = cursor->current + new_ndwords;
+
+ /* Move down: remove words at (cursor->current + new_ndwords) */
+ memmove(pos, pos + delta,
+ (last_segment_end + 1 - pos) * sizeof (uint32_t));
+
+ /* Zero the new space at the end of the TLV chain */
+ memset(last_segment_end + 1 - delta, 0,
+ delta * sizeof (uint32_t));
+
+ /* Adjust the end pointer */
+ cursor->end -= delta;
+ }
+
+ /* Write new data */
+ tlv_write(cursor, tag, data, size);
+
+ return (0);
+
+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 checksum_tlv_partition(
+ __in nvram_partition_t *partition)
+{
+ tlv_cursor_t *cursor;
+ uint32_t *ptr;
+ uint32_t *end;
+ uint32_t csum;
+ size_t len;
+
+ cursor = &partition->tlv_cursor;
+ len = tlv_block_length_used(cursor);
+ EFSYS_ASSERT3U((len & 3), ==, 0);
+
+ csum = 0;
+ ptr = partition->data;
+ end = &ptr[len >> 2];
+
+ while (ptr < end)
+ csum += __LE_TO_CPU_32(*ptr++);
+
+ return (csum);
+}
+
+static __checkReturn efx_rc_t
+tlv_update_partition_len_and_cks(
+ __in tlv_cursor_t *cursor)
+{
+ efx_rc_t rc;
+ nvram_partition_t partition;
+ struct tlv_partition_header *header;
+ struct tlv_partition_trailer *trailer;
+ size_t new_len;
+
+ /*
+ * We just modified the partition, so the total length may not be
+ * valid. Don't use tlv_find(), which performs some sanity checks
+ * that may fail here.
+ */
+ partition.data = cursor->block;
+ memcpy(&partition.tlv_cursor, cursor, sizeof (*cursor));
+ header = (struct tlv_partition_header *)partition.data;
+ /* Sanity check. */
+ if (__LE_TO_CPU_32(header->tag) != TLV_TAG_PARTITION_HEADER) {
+ rc = EFAULT;
+ goto fail1;
+ }
+ new_len = tlv_block_length_used(&partition.tlv_cursor);
+ if (new_len == 0) {
+ rc = EFAULT;
+ goto fail2;
+ }
+ header->total_length = __CPU_TO_LE_32(new_len);
+ /* Ensure the modified partition always has a new generation count. */
+ header->generation = __CPU_TO_LE_32(
+ __LE_TO_CPU_32(header->generation) + 1);
+
+ trailer = (struct tlv_partition_trailer *)((uint8_t *)header +
+ new_len - sizeof (*trailer) - sizeof (uint32_t));
+ trailer->generation = header->generation;
+ trailer->checksum = __CPU_TO_LE_32(
+ __LE_TO_CPU_32(trailer->checksum) -
+ checksum_tlv_partition(&partition));
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/* Validate buffer contents (before writing to flash) */
+ __checkReturn efx_rc_t
+ef10_nvram_buffer_validate(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in_bcount(partn_size) caddr_t partn_data,
+ __in size_t partn_size)
+{
+ tlv_cursor_t cursor;
+ struct tlv_partition_header *header;
+ struct tlv_partition_trailer *trailer;
+ size_t total_length;
+ uint32_t cksum;
+ int pos;
+ efx_rc_t rc;
+
+ EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK);
+
+ if ((partn_data == NULL) || (partn_size == 0)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* The partition header must be the first item (at offset zero) */
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)partn_data,
+ partn_size)) != 0) {
+ rc = EFAULT;
+ goto fail2;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail3;
+ }
+ header = (struct tlv_partition_header *)tlv_item(&cursor);
+
+ /* Check TLV partition length (includes the END tag) */
+ total_length = __LE_TO_CPU_32(header->total_length);
+ if (total_length > partn_size) {
+ rc = EFBIG;
+ goto fail4;
+ }
+
+ /* Check partition ends with PARTITION_TRAILER and END tags */
+ if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
+ rc = EINVAL;
+ goto fail5;
+ }
+ trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
+
+ if ((rc = tlv_advance(&cursor)) != 0) {
+ rc = EINVAL;
+ goto fail6;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail7;
+ }
+
+ /* Check generation counts are consistent */
+ if (trailer->generation != header->generation) {
+ rc = EINVAL;
+ goto fail8;
+ }
+
+ /* Verify partition checksum */
+ cksum = 0;
+ for (pos = 0; (size_t)pos < total_length; pos += sizeof (uint32_t)) {
+ cksum += *((uint32_t *)(partn_data + pos));
+ }
+ if (cksum != 0) {
+ rc = EINVAL;
+ goto fail9;
+ }
+
+ return (0);
+
+fail9:
+ EFSYS_PROBE(fail9);
+fail8:
+ EFSYS_PROBE(fail8);
+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);
+}
+
+
+
+ __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 int 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;
+ uint32_t *segment_used;
+
+ _NOTE(ARGUNUSED(offset))
+
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)bufferp,
+ buffer_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+
+ segment_used = cursor.block;
+
+ /*
+ * Go through each segment and check that it has an end tag. If there
+ * is no end tag then the previous segment was the last valid one,
+ * so return the used space including that end tag.
+ */
+ while (tlv_tag(&cursor) == TLV_TAG_PARTITION_HEADER) {
+ if (tlv_require_end(&cursor) != 0) {
+ if (segment_used == cursor.block) {
+ /*
+ * First segment is corrupt, so there is
+ * no valid data in partition.
+ */
+ rc = EINVAL;
+ goto fail2;
+ }
+ break;
+ }
+ segment_used = cursor.end + 1;
+
+ cursor.current = segment_used;
+ }
+ /* Return space used (including the END tag) */
+ *endp = (segment_used - cursor.block) * sizeof (uint32_t);
+
+ 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, (uint8_t *)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;
+
+ _NOTE(ARGUNUSED(length, end))
+
+ 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
+ * be multiple segments in a partition, so seg_offset allows segments
+ * beyond the first to be read.
+ */
+static __checkReturn efx_rc_t
+ef10_nvram_read_tlv_segment(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in size_t seg_offset,
+ __in_bcount(max_seg_size) caddr_t seg_data,
+ __in size_t max_seg_size)
+{
+ tlv_cursor_t cursor;
+ struct tlv_partition_header *header;
+ struct tlv_partition_trailer *trailer;
+ size_t total_length;
+ uint32_t cksum;
+ int pos;
+ efx_rc_t rc;
+
+ EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK);
+
+ if ((seg_data == NULL) || (max_seg_size == 0)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Read initial chunk of the segment, starting at offset */
+ if ((rc = ef10_nvram_partn_read_mode(enp, partn, seg_offset, seg_data,
+ EF10_NVRAM_CHUNK,
+ MC_CMD_NVRAM_READ_IN_V2_TARGET_CURRENT)) != 0) {
+ goto fail2;
+ }
+
+ /* A PARTITION_HEADER tag must be the first item at the given offset */
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)seg_data,
+ max_seg_size)) != 0) {
+ rc = EFAULT;
+ goto fail3;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail4;
+ }
+ header = (struct tlv_partition_header *)tlv_item(&cursor);
+
+ /* Check TLV segment length (includes the END tag) */
+ total_length = __LE_TO_CPU_32(header->total_length);
+ if (total_length > max_seg_size) {
+ rc = EFBIG;
+ goto fail5;
+ }
+
+ /* Read the remaining segment content */
+ if (total_length > EF10_NVRAM_CHUNK) {
+ if ((rc = ef10_nvram_partn_read_mode(enp, partn,
+ seg_offset + EF10_NVRAM_CHUNK,
+ seg_data + EF10_NVRAM_CHUNK,
+ total_length - EF10_NVRAM_CHUNK,
+ MC_CMD_NVRAM_READ_IN_V2_TARGET_CURRENT)) != 0)
+ goto fail6;
+ }
+
+ /* Check segment ends with PARTITION_TRAILER and END tags */
+ if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
+ rc = EINVAL;
+ goto fail7;
+ }
+ trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
+
+ if ((rc = tlv_advance(&cursor)) != 0) {
+ rc = EINVAL;
+ goto fail8;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail9;
+ }
+
+ /* Check data read from segment is consistent */
+ if (trailer->generation != header->generation) {
+ /*
+ * The partition data may have been modified between successive
+ * MCDI NVRAM_READ requests by the MC or another PCI function.
+ *
+ * The caller must retry to obtain consistent partition data.
+ */
+ rc = EAGAIN;
+ goto fail10;
+ }
+
+ /* Verify segment checksum */
+ cksum = 0;
+ for (pos = 0; (size_t)pos < total_length; pos += sizeof (uint32_t)) {
+ cksum += *((uint32_t *)(seg_data + pos));
+ }
+ if (cksum != 0) {
+ rc = EINVAL;
+ goto fail11;
+ }
+
+ return (0);
+
+fail11:
+ EFSYS_PROBE(fail11);
+fail10:
+ EFSYS_PROBE(fail10);
+fail9:
+ EFSYS_PROBE(fail9);
+fail8:
+ EFSYS_PROBE(fail8);
+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);
+}
+
+/*
+ * Read a single TLV item from a host memory
+ * buffer containing a TLV formatted segment.
+ */
+ __checkReturn efx_rc_t
+ef10_nvram_buf_read_tlv(
+ __in efx_nic_t *enp,
+ __in_bcount(max_seg_size) caddr_t seg_data,
+ __in size_t max_seg_size,
+ __in uint32_t tag,
+ __deref_out_bcount_opt(*sizep) caddr_t *datap,
+ __out size_t *sizep)
+{
+ tlv_cursor_t cursor;
+ caddr_t data;
+ size_t length;
+ caddr_t value;
+ efx_rc_t rc;
+
+ if ((seg_data == NULL) || (max_seg_size == 0)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* Find requested TLV tag in segment data */
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)seg_data,
+ max_seg_size)) != 0) {
+ rc = EFAULT;
+ goto fail2;
+ }
+ if ((rc = tlv_find(&cursor, tag)) != 0) {
+ rc = ENOENT;
+ goto fail3;
+ }
+ value = (caddr_t)tlv_value(&cursor);
+ length = tlv_length(&cursor);
+
+ if (length == 0)
+ data = NULL;
+ else {
+ /* Copy out data from TLV item */
+ EFSYS_KMEM_ALLOC(enp->en_esip, length, data);
+ if (data == NULL) {
+ rc = ENOMEM;
+ goto fail4;
+ }
+ memcpy(data, value, length);
+ }
+
+ *datap = data;
+ *sizep = length;
+
+ return (0);
+
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/* Read a single TLV item from the first segment in a TLV formatted partition */
+ __checkReturn efx_rc_t
+ef10_nvram_partn_read_tlv(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in uint32_t tag,
+ __deref_out_bcount_opt(*seg_sizep) caddr_t *seg_datap,
+ __out size_t *seg_sizep)
+{
+ caddr_t seg_data = NULL;
+ size_t partn_size = 0;
+ size_t length;
+ caddr_t data;
+ int retry;
+ efx_rc_t rc;
+
+ /* Allocate sufficient memory for the entire partition */
+ if ((rc = ef10_nvram_partn_size(enp, partn, &partn_size)) != 0)
+ goto fail1;
+
+ if (partn_size == 0) {
+ rc = ENOENT;
+ goto fail2;
+ }
+
+ EFSYS_KMEM_ALLOC(enp->en_esip, partn_size, seg_data);
+ if (seg_data == NULL) {
+ rc = ENOMEM;
+ goto fail3;
+ }
+
+ /*
+ * Read the first segment in a TLV partition. Retry until consistent
+ * segment contents are returned. Inconsistent data may be read if:
+ * a) the segment contents are invalid
+ * b) the MC has rebooted while we were reading the partition
+ * c) the partition has been modified while we were reading it
+ * Limit retry attempts to ensure forward progress.
+ */
+ retry = 10;
+ do {
+ rc = ef10_nvram_read_tlv_segment(enp, partn, 0,
+ seg_data, partn_size);
+ } while ((rc == EAGAIN) && (--retry > 0));
+
+ if (rc != 0) {
+ /* Failed to obtain consistent segment data */
+ goto fail4;
+ }
+
+ if ((rc = ef10_nvram_buf_read_tlv(enp, seg_data, partn_size,
+ tag, &data, &length)) != 0)
+ goto fail5;
+
+ EFSYS_KMEM_FREE(enp->en_esip, partn_size, seg_data);
+
+ *seg_datap = data;
+ *seg_sizep = length;
+
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+
+ EFSYS_KMEM_FREE(enp->en_esip, partn_size, seg_data);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/* Compute the size of a segment. */
+ static __checkReturn efx_rc_t
+ef10_nvram_buf_segment_size(
+ __in caddr_t seg_data,
+ __in size_t max_seg_size,
+ __out size_t *seg_sizep)
+{
+ efx_rc_t rc;
+ tlv_cursor_t cursor;
+ struct tlv_partition_header *header;
+ uint32_t cksum;
+ int pos;
+ uint32_t *end_tag_position;
+ uint32_t segment_length;
+
+ /* A PARTITION_HEADER tag must be the first item at the given offset */
+ if ((rc = tlv_init_cursor_from_size(&cursor, (uint8_t *)seg_data,
+ max_seg_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail2;
+ }
+ header = (struct tlv_partition_header *)tlv_item(&cursor);
+
+ /* Check TLV segment length (includes the END tag) */
+ *seg_sizep = __LE_TO_CPU_32(header->total_length);
+ if (*seg_sizep > max_seg_size) {
+ rc = EFBIG;
+ goto fail3;
+ }
+
+ /* Check segment ends with PARTITION_TRAILER and END tags */
+ if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
+ rc = EINVAL;
+ goto fail4;
+ }
+
+ if ((rc = tlv_advance(&cursor)) != 0) {
+ rc = EINVAL;
+ goto fail5;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_END) {
+ rc = EINVAL;
+ goto fail6;
+ }
+ end_tag_position = cursor.current;
+
+ /* Verify segment checksum */
+ cksum = 0;
+ for (pos = 0; (size_t)pos < *seg_sizep; pos += sizeof (uint32_t)) {
+ cksum += *((uint32_t *)(seg_data + pos));
+ }
+ if (cksum != 0) {
+ rc = EINVAL;
+ goto fail7;
+ }
+
+ /*
+ * Calculate total length from HEADER to END tags and compare to
+ * max_seg_size and the total_length field in the HEADER tag.
+ */
+ segment_length = tlv_block_length_used(&cursor);
+
+ if (segment_length > max_seg_size) {
+ rc = EINVAL;
+ goto fail8;
+ }
+
+ if (segment_length != *seg_sizep) {
+ rc = EINVAL;
+ goto fail9;
+ }
+
+ /* Skip over the first HEADER tag. */
+ rc = tlv_rewind(&cursor);
+ rc = tlv_advance(&cursor);
+
+ while (rc == 0) {
+ if (tlv_tag(&cursor) == TLV_TAG_END) {
+ /* Check that the END tag is the one found earlier. */
+ if (cursor.current != end_tag_position)
+ goto fail10;
+ break;
+ }
+ /* Check for duplicate HEADER tags before the END tag. */
+ if (tlv_tag(&cursor) == TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail11;
+ }
+
+ rc = tlv_advance(&cursor);
+ }
+ if (rc != 0)
+ goto fail12;
+
+ return (0);
+
+fail12:
+ EFSYS_PROBE(fail12);
+fail11:
+ EFSYS_PROBE(fail11);
+fail10:
+ EFSYS_PROBE(fail10);
+fail9:
+ EFSYS_PROBE(fail9);
+fail8:
+ EFSYS_PROBE(fail8);
+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);
+}
+
+/*
+ * Add or update a single TLV item in a host memory buffer containing a TLV
+ * formatted segment. Historically partitions consisted of only one segment.
+ */
+ __checkReturn efx_rc_t
+ef10_nvram_buf_write_tlv(
+ __inout_bcount(max_seg_size) caddr_t seg_data,
+ __in size_t max_seg_size,
+ __in uint32_t tag,
+ __in_bcount(tag_size) caddr_t tag_data,
+ __in size_t tag_size,
+ __out size_t *total_lengthp)
+{
+ tlv_cursor_t cursor;
+ struct tlv_partition_header *header;
+ struct tlv_partition_trailer *trailer;
+ uint32_t generation;
+ uint32_t cksum;
+ int pos;
+ 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 *)seg_data,
+ max_seg_size)) != 0) {
+ rc = EFAULT;
+ goto fail1;
+ }
+ if (tlv_tag(&cursor) != TLV_TAG_PARTITION_HEADER) {
+ rc = EINVAL;
+ goto fail2;
+ }
+ header = (struct tlv_partition_header *)tlv_item(&cursor);
+
+ /* Update the TLV chain to contain the new data */
+ if ((rc = tlv_find(&cursor, tag)) == 0) {
+ /* Modify existing TLV item */
+ if ((rc = tlv_modify(&cursor, tag,
+ (uint8_t *)tag_data, tag_size)) != 0)
+ goto fail3;
+ } else {
+ /* Insert a new TLV item before the PARTITION_TRAILER */
+ rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER);
+ if (rc != 0) {
+ rc = EINVAL;
+ goto fail4;
+ }
+ if ((rc = tlv_insert(&cursor, tag,
+ (uint8_t *)tag_data, tag_size)) != 0) {
+ rc = EINVAL;
+ goto fail5;
+ }
+ }
+
+ /* Find the trailer tag */
+ if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
+ rc = EINVAL;
+ goto fail6;
+ }
+ trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
+
+ /* Update PARTITION_HEADER and PARTITION_TRAILER fields */
+ *total_lengthp = tlv_block_length_used(&cursor);
+ if (*total_lengthp > max_seg_size) {
+ rc = ENOSPC;
+ goto fail7;
+ }
+ generation = __LE_TO_CPU_32(header->generation) + 1;
+
+ header->total_length = __CPU_TO_LE_32(*total_lengthp);
+ header->generation = __CPU_TO_LE_32(generation);
+ trailer->generation = __CPU_TO_LE_32(generation);
+
+ /* Recompute PARTITION_TRAILER checksum */
+ trailer->checksum = 0;
+ cksum = 0;
+ for (pos = 0; (size_t)pos < *total_lengthp; pos += sizeof (uint32_t)) {
+ cksum += *((uint32_t *)(seg_data + pos));
+ }
+ trailer->checksum = ~cksum + 1;
+
+ 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);
+}
+
+/*
+ * Add or update a single TLV item in the first segment of a TLV formatted
+ * dynamic config partition. The first segment is the current active
+ * configuration.
+ */
+ __checkReturn efx_rc_t
+ef10_nvram_partn_write_tlv(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in uint32_t tag,
+ __in_bcount(size) caddr_t data,
+ __in size_t size)
+{
+ return ef10_nvram_partn_write_segment_tlv(enp, partn, tag, data,
+ size, B_FALSE);
+}
+
+/*
+ * Read a segment from nvram at the given offset into a buffer (segment_data)
+ * and optionally write a new tag to it.
+ */
+static __checkReturn efx_rc_t
+ef10_nvram_segment_write_tlv(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in uint32_t tag,
+ __in_bcount(size) caddr_t data,
+ __in size_t size,
+ __inout caddr_t *seg_datap,
+ __inout size_t *partn_offsetp,
+ __inout size_t *src_remain_lenp,
+ __inout size_t *dest_remain_lenp,
+ __in boolean_t write)
+{
+ efx_rc_t rc;
+ efx_rc_t status;
+ size_t original_segment_size;
+ size_t modified_segment_size;
+
+ /*
+ * Read the segment from NVRAM into the segment_data buffer and validate
+ * it, returning if it does not validate. This is not a failure unless
+ * this is the first segment in a partition. In this case the caller
+ * must propagate the error.
+ */
+ status = ef10_nvram_read_tlv_segment(enp, partn, *partn_offsetp,
+ *seg_datap, *src_remain_lenp);
+ if (status != 0) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ status = ef10_nvram_buf_segment_size(*seg_datap,
+ *src_remain_lenp, &original_segment_size);
+ if (status != 0) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ if (write) {
+ /* Update the contents of the segment in the buffer */
+ if ((rc = ef10_nvram_buf_write_tlv(*seg_datap,
+ *dest_remain_lenp, tag, data, size,
+ &modified_segment_size)) != 0) {
+ goto fail3;
+ }
+ *dest_remain_lenp -= modified_segment_size;
+ *seg_datap += modified_segment_size;
+ } else {
+ /*
+ * We won't modify this segment, but still need to update the
+ * remaining lengths and pointers.
+ */
+ *dest_remain_lenp -= original_segment_size;
+ *seg_datap += original_segment_size;
+ }
+
+ *partn_offsetp += original_segment_size;
+ *src_remain_lenp -= original_segment_size;
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/*
+ * Add or update a single TLV item in either the first segment or in all
+ * segments in a TLV formatted dynamic config partition. Dynamic config
+ * partitions on boards that support RFID are divided into a number of segments,
+ * each formatted like a partition, with header, trailer and end tags. The first
+ * segment is the current active configuration.
+ *
+ * The segments are initialised by manftest and each contain a different
+ * configuration e.g. firmware variant. The firmware can be instructed
+ * via RFID to copy a segment to replace the first segment, hence changing the
+ * active configuration. This allows ops to change the configuration of a board
+ * prior to shipment using RFID.
+ *
+ * Changes to the dynamic config may need to be written to all segments (e.g.
+ * firmware versions) or just the first segment (changes to the active
+ * configuration). See SF-111324-SW "The use of RFID in Solarflare Products".
+ * If only the first segment is written the code still needs to be aware of the
+ * possible presence of subsequent segments as writing to a segment may cause
+ * its size to increase, which would overwrite the subsequent segments and
+ * invalidate them.
+ */
+ __checkReturn efx_rc_t
+ef10_nvram_partn_write_segment_tlv(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in uint32_t tag,
+ __in_bcount(size) caddr_t data,
+ __in size_t size,
+ __in boolean_t all_segments)
+{
+ size_t partn_size = 0;
+ caddr_t partn_data;
+ size_t total_length = 0;
+ efx_rc_t rc;
+ size_t current_offset = 0;
+ size_t remaining_original_length;
+ size_t remaining_modified_length;
+ caddr_t segment_data;
+
+ EFSYS_ASSERT3U(partn, ==, NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG);
+
+ /* Allocate sufficient memory for the entire partition */
+ if ((rc = ef10_nvram_partn_size(enp, partn, &partn_size)) != 0)
+ goto fail1;
+
+ EFSYS_KMEM_ALLOC(enp->en_esip, partn_size, partn_data);
+ if (partn_data == NULL) {
+ rc = ENOMEM;
+ goto fail2;
+ }
+
+ remaining_original_length = partn_size;
+ remaining_modified_length = partn_size;
+ segment_data = partn_data;
+
+ /* Lock the partition */
+ if ((rc = ef10_nvram_partn_lock(enp, partn)) != 0)
+ goto fail3;
+
+ /* Iterate over each (potential) segment to update it. */
+ do {
+ boolean_t write = all_segments || current_offset == 0;
+
+ rc = ef10_nvram_segment_write_tlv(enp, partn, tag, data, size,
+ &segment_data, ¤t_offset, &remaining_original_length,
+ &remaining_modified_length, write);
+ if (rc != 0) {
+ if (current_offset == 0) {
+ /*
+ * If no data has been read then the first
+ * segment is invalid, which is an error.
+ */
+ goto fail4;
+ }
+ break;
+ }
+ } while (current_offset < partn_size);
+
+ total_length = segment_data - partn_data;
+
+ /*
+ * We've run out of space. This should actually be dealt with by
+ * ef10_nvram_buf_write_tlv returning ENOSPC.
+ */
+ if (total_length > partn_size) {
+ rc = ENOSPC;
+ goto fail5;
+ }
+
+ /* Erase the whole partition in NVRAM */
+ if ((rc = ef10_nvram_partn_erase(enp, partn, 0, partn_size)) != 0)
+ goto fail6;
+
+ /* Write new partition contents from the buffer to NVRAM */
+ if ((rc = ef10_nvram_partn_write(enp, partn, 0, partn_data,
+ total_length)) != 0)
+ goto fail7;
+
+ /* Unlock the partition */
+ ef10_nvram_partn_unlock(enp, partn, NULL);
+
+ EFSYS_KMEM_FREE(enp->en_esip, partn_size, partn_data);
+
+ return (0);
+
+fail7:
+ EFSYS_PROBE(fail7);
+fail6:
+ EFSYS_PROBE(fail6);
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+
+ ef10_nvram_partn_unlock(enp, partn, NULL);
+fail3:
+ EFSYS_PROBE(fail3);
+
+ EFSYS_KMEM_FREE(enp->en_esip, partn_size, partn_data);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+/*
+ * Get the size of a NVRAM partition. This is the total size allocated in nvram,
+ * not the data used by the segments in the partition.
+ */
+ __checkReturn efx_rc_t
+ef10_nvram_partn_size(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __out size_t *sizep)
+{
+ efx_rc_t rc;
+
+ if ((rc = efx_mcdi_nvram_info(enp, partn, sizep,
+ NULL, NULL, NULL)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_lock(
+ __in efx_nic_t *enp,
+ __in uint32_t partn)
+{
+ efx_rc_t rc;
+
+ if ((rc = efx_mcdi_nvram_update_start(enp, partn)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_read_mode(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in unsigned int offset,
+ __out_bcount(size) caddr_t data,
+ __in size_t size,
+ __in uint32_t mode)
+{
+ size_t chunk;
+ efx_rc_t rc;
+
+ while (size > 0) {
+ chunk = MIN(size, EF10_NVRAM_CHUNK);
+
+ if ((rc = efx_mcdi_nvram_read(enp, partn, offset,
+ data, chunk, mode)) != 0) {
+ goto fail1;
+ }
+
+ size -= chunk;
+ data += chunk;
+ offset += chunk;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_read(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in unsigned int offset,
+ __out_bcount(size) caddr_t data,
+ __in size_t size)
+{
+ /*
+ * Read requests which come in through the EFX API expect to
+ * read the current, active partition.
+ */
+ return ef10_nvram_partn_read_mode(enp, partn, offset, data, size,
+ MC_CMD_NVRAM_READ_IN_V2_TARGET_CURRENT);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_erase(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in unsigned int offset,
+ __in size_t size)
+{
+ efx_rc_t rc;
+ uint32_t erase_size;
+
+ 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);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_write(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in unsigned int offset,
+ __out_bcount(size) caddr_t data,
+ __in size_t size)
+{
+ size_t chunk;
+ uint32_t write_size;
+ efx_rc_t rc;
+
+ if ((rc = efx_mcdi_nvram_info(enp, partn, NULL, NULL,
+ NULL, &write_size)) != 0)
+ goto fail1;
+
+ if (write_size != 0) {
+ /*
+ * Check that the size is a multiple of the write chunk size if
+ * the write chunk size is available.
+ */
+ if (size % write_size != 0) {
+ rc = EINVAL;
+ goto fail2;
+ }
+ } else {
+ write_size = EF10_NVRAM_CHUNK;
+ }
+
+ while (size > 0) {
+ chunk = MIN(size, write_size);
+
+ if ((rc = efx_mcdi_nvram_write(enp, partn, offset,
+ data, chunk)) != 0) {
+ goto fail3;
+ }
+
+ size -= chunk;
+ data += chunk;
+ offset += chunk;
+ }
+
+ 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_partn_unlock(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __out_opt uint32_t *resultp)
+{
+ boolean_t reboot = B_FALSE;
+ efx_rc_t rc;
+
+ if (resultp != NULL)
+ *resultp = MC_CMD_NVRAM_VERIFY_RC_UNKNOWN;
+
+ rc = efx_mcdi_nvram_update_finish(enp, partn, reboot, resultp);
+ if (rc != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_set_version(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __in_ecount(4) uint16_t version[4])
+{
+ struct tlv_partition_version partn_version;
+ size_t size;
+ efx_rc_t rc;
+
+ /* Add or modify partition version TLV item */
+ partn_version.version_w = __CPU_TO_LE_16(version[0]);
+ partn_version.version_x = __CPU_TO_LE_16(version[1]);
+ partn_version.version_y = __CPU_TO_LE_16(version[2]);
+ partn_version.version_z = __CPU_TO_LE_16(version[3]);
+
+ size = sizeof (partn_version) - (2 * sizeof (uint32_t));
+
+ /* Write the version number to all segments in the partition */
+ if ((rc = ef10_nvram_partn_write_segment_tlv(enp,
+ NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
+ TLV_TAG_PARTITION_VERSION(partn),
+ (caddr_t)&partn_version.version_w, size, B_TRUE)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_VPD || EFSYS_OPT_NVRAM */
+
+#if EFSYS_OPT_NVRAM
+
+typedef struct ef10_parttbl_entry_s {
+ unsigned int partn;
+ unsigned int port;
+ efx_nvram_type_t nvtype;
+} ef10_parttbl_entry_t;
+
+/* Translate EFX NVRAM types to firmware partition types */
+static ef10_parttbl_entry_t hunt_parttbl[] = {
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 1, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 2, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 3, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 4, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 1, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 2, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 3, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 4, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 1, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 2, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 3, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 4, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 1, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT1, 2, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT2, 3, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT3, 4, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 1, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 2, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 3, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 4, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_FPGA, 1, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 2, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 3, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 4, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 1, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 2, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 3, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 4, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_LICENSE, 1, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 2, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 3, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 4, EFX_NVRAM_LICENSE}
+};
+
+static ef10_parttbl_entry_t medford_parttbl[] = {
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 1, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 2, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 3, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE, 4, EFX_NVRAM_MC_FIRMWARE},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 1, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 2, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 3, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_MC_FIRMWARE_BACKUP, 4, EFX_NVRAM_MC_GOLDEN},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 1, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 2, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 3, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_ROM, 4, EFX_NVRAM_BOOTROM},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 1, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 2, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 3, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_EXPROM_CONFIG_PORT0, 4, EFX_NVRAM_BOOTROM_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 1, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 2, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 3, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, 4, EFX_NVRAM_DYNAMIC_CFG},
+ {NVRAM_PARTITION_TYPE_FPGA, 1, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 2, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 3, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA, 4, EFX_NVRAM_FPGA},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 1, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 2, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 3, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_FPGA_BACKUP, 4, EFX_NVRAM_FPGA_BACKUP},
+ {NVRAM_PARTITION_TYPE_LICENSE, 1, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 2, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 3, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_LICENSE, 4, EFX_NVRAM_LICENSE},
+ {NVRAM_PARTITION_TYPE_EXPANSION_UEFI, 1, EFX_NVRAM_UEFIROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_UEFI, 2, EFX_NVRAM_UEFIROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_UEFI, 3, EFX_NVRAM_UEFIROM},
+ {NVRAM_PARTITION_TYPE_EXPANSION_UEFI, 4, EFX_NVRAM_UEFIROM}
+};
+
+static __checkReturn efx_rc_t
+ef10_parttbl_get(
+ __in efx_nic_t *enp,
+ __out ef10_parttbl_entry_t **parttblp,
+ __out size_t *parttbl_rowsp)
+{
+ switch (enp->en_family) {
+ case EFX_FAMILY_HUNTINGTON:
+ *parttblp = hunt_parttbl;
+ *parttbl_rowsp = EFX_ARRAY_SIZE(hunt_parttbl);
+ break;
+
+ case EFX_FAMILY_MEDFORD:
+ *parttblp = medford_parttbl;
+ *parttbl_rowsp = EFX_ARRAY_SIZE(medford_parttbl);
+ break;
+
+ default:
+ EFSYS_ASSERT(B_FALSE);
+ return (EINVAL);
+ }
+ return (0);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_type_to_partn(
+ __in efx_nic_t *enp,
+ __in efx_nvram_type_t type,
+ __out uint32_t *partnp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ ef10_parttbl_entry_t *parttbl = NULL;
+ size_t parttbl_rows = 0;
+ unsigned int i;
+
+ EFSYS_ASSERT3U(type, <, EFX_NVRAM_NTYPES);
+ EFSYS_ASSERT(partnp != NULL);
+
+ if (ef10_parttbl_get(enp, &parttbl, &parttbl_rows) == 0) {
+ for (i = 0; i < parttbl_rows; i++) {
+ ef10_parttbl_entry_t *entry = &parttbl[i];
+
+ if (entry->nvtype == type &&
+ entry->port == emip->emi_port) {
+ *partnp = entry->partn;
+ return (0);
+ }
+ }
+ }
+
+ return (ENOTSUP);
+}
+
+#if EFSYS_OPT_DIAG
+
+static __checkReturn efx_rc_t
+ef10_nvram_partn_to_type(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __out efx_nvram_type_t *typep)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ ef10_parttbl_entry_t *parttbl = NULL;
+ size_t parttbl_rows = 0;
+ unsigned int i;
+
+ EFSYS_ASSERT(typep != NULL);
+
+ if (ef10_parttbl_get(enp, &parttbl, &parttbl_rows) == 0) {
+ for (i = 0; i < parttbl_rows; i++) {
+ ef10_parttbl_entry_t *entry = &parttbl[i];
+
+ if (entry->partn == partn &&
+ entry->port == emip->emi_port) {
+ *typep = entry->nvtype;
+ return (0);
+ }
+ }
+ }
+
+ return (ENOTSUP);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_test(
+ __in efx_nic_t *enp)
+{
+ efx_nvram_type_t type;
+ unsigned int npartns = 0;
+ uint32_t *partns = NULL;
+ size_t size;
+ unsigned int i;
+ efx_rc_t rc;
+
+ /* Read available partitions from NVRAM partition map */
+ size = MC_CMD_NVRAM_PARTITIONS_OUT_TYPE_ID_MAXNUM * sizeof (uint32_t);
+ EFSYS_KMEM_ALLOC(enp->en_esip, size, partns);
+ if (partns == NULL) {
+ rc = ENOMEM;
+ goto fail1;
+ }
+
+ if ((rc = efx_mcdi_nvram_partitions(enp, (caddr_t)partns, size,
+ &npartns)) != 0) {
+ goto fail2;
+ }
+
+ for (i = 0; i < npartns; i++) {
+ /* Check if the partition is supported for this port */
+ if ((rc = ef10_nvram_partn_to_type(enp, partns[i], &type)) != 0)
+ continue;
+
+ if ((rc = efx_mcdi_nvram_test(enp, partns[i])) != 0)
+ goto fail3;
+ }
+
+ EFSYS_KMEM_FREE(enp->en_esip, size, partns);
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+ EFSYS_KMEM_FREE(enp->en_esip, size, partns);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_DIAG */
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_get_version(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __out uint32_t *subtypep,
+ __out_ecount(4) uint16_t version[4])
+{
+ efx_rc_t rc;
+
+ /* FIXME: get highest partn version from all ports */
+ /* FIXME: return partn description if available */
+
+ if ((rc = efx_mcdi_nvram_metadata(enp, partn, subtypep,
+ version, NULL, 0)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_rw_start(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __out size_t *chunk_sizep)
+{
+ efx_rc_t rc;
+
+ if ((rc = ef10_nvram_partn_lock(enp, partn)) != 0)
+ goto fail1;
+
+ if (chunk_sizep != NULL)
+ *chunk_sizep = EF10_NVRAM_CHUNK;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+ef10_nvram_partn_rw_finish(
+ __in efx_nic_t *enp,
+ __in uint32_t partn)
+{
+ efx_rc_t rc;
+
+ if ((rc = ef10_nvram_partn_unlock(enp, partn, NULL)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+#endif /* EFSYS_OPT_NVRAM */
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
Code Review / deb_dpdk.git / blobdiff