New upstream version 18.11-rc1
[deb_dpdk.git] / drivers / net / sfc / base / ef10_nvram.c
index 2883ec8..8d1b64f 100644 (file)
@@ -203,14 +203,14 @@ tlv_validate_state(
 
        if (tlv_tag(cursor) != TLV_TAG_END) {
                /* Check current item has space for tag and length */
-               if (cursor->current > (cursor->limit - 2)) {
+               if (cursor->current > (cursor->limit - 1)) {
                        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)) {
+               /* Check we have value data for current item and an END tag */
+               if (tlv_next_item_ptr(cursor) > cursor->limit) {
                        cursor->current = NULL;
                        rc = EFAULT;
                        goto fail4;
@@ -635,7 +635,6 @@ fail1:
 /* 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)
@@ -648,7 +647,6 @@ ef10_nvram_buffer_validate(
        int pos;
        efx_rc_t rc;
 
-       _NOTE(ARGUNUSED(enp, partn))
        EFX_STATIC_ASSERT(sizeof (*header) <= EF10_NVRAM_CHUNK);
 
        if ((partn_data == NULL) || (partn_size == 0)) {
@@ -675,26 +673,32 @@ ef10_nvram_buffer_validate(
                goto fail4;
        }
 
+       /* Check partition header matches partn */
+       if (__LE_TO_CPU_16(header->type_id) != partn) {
+               rc = EINVAL;
+               goto fail5;
+       }
+
        /* Check partition ends with PARTITION_TRAILER and END tags */
        if ((rc = tlv_find(&cursor, TLV_TAG_PARTITION_TRAILER)) != 0) {
                rc = EINVAL;
-               goto fail5;
+               goto fail6;
        }
        trailer = (struct tlv_partition_trailer *)tlv_item(&cursor);
 
        if ((rc = tlv_advance(&cursor)) != 0) {
                rc = EINVAL;
-               goto fail6;
+               goto fail7;
        }
        if (tlv_tag(&cursor) != TLV_TAG_END) {
                rc = EINVAL;
-               goto fail7;
+               goto fail8;
        }
 
        /* Check generation counts are consistent */
        if (trailer->generation != header->generation) {
                rc = EINVAL;
-               goto fail8;
+               goto fail9;
        }
 
        /* Verify partition checksum */
@@ -704,11 +708,13 @@ ef10_nvram_buffer_validate(
        }
        if (cksum != 0) {
                rc = EINVAL;
-               goto fail9;
+               goto fail10;
        }
 
        return (0);
 
+fail10:
+       EFSYS_PROBE(fail10);
 fail9:
        EFSYS_PROBE(fail9);
 fail8:
@@ -731,13 +737,24 @@ fail1:
        return (rc);
 }
 
+                       void
+ef10_nvram_buffer_init(
+       __out_bcount(buffer_size)
+                               caddr_t bufferp,
+       __in                    size_t buffer_size)
+{
+       uint32_t *buf = (uint32_t *)bufferp;
+
+       memset(buf, 0xff, buffer_size);
 
+       tlv_init_block(buf);
+}
 
        __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                    uint32_t partn_type,
+       __out_bcount(partn_size)
+                               caddr_t partn_data,
        __in                    size_t partn_size)
 {
        uint32_t *buf = (uint32_t *)partn_data;
@@ -753,9 +770,8 @@ ef10_nvram_buffer_create(
                goto fail1;
        }
 
-       memset(buf, 0xff, partn_size);
+       ef10_nvram_buffer_init(partn_data, partn_size);
 
-       tlv_init_block(buf);
        if ((rc = tlv_init_cursor(&cursor, buf,
            (uint32_t *)((uint8_t *)buf + partn_size),
            buf)) != 0) {
@@ -787,7 +803,7 @@ ef10_nvram_buffer_create(
                goto fail6;
 
        /* Check that the partition is valid. */
-       if ((rc = ef10_nvram_buffer_validate(enp, partn_type,
+       if ((rc = ef10_nvram_buffer_validate(partn_type,
            partn_data, partn_size)) != 0)
                goto fail7;
 
@@ -958,6 +974,48 @@ ef10_nvram_buffer_find_item(
        return (B_FALSE);
 }
 
+       __checkReturn           efx_rc_t
+ef10_nvram_buffer_peek_item(
+       __in_bcount(buffer_size)
+                               caddr_t bufferp,
+       __in                    size_t buffer_size,
+       __in                    uint32_t offset,
+       __out                   uint32_t *tagp,
+       __out                   uint32_t *lengthp,
+       __out                   uint32_t *value_offsetp)
+{
+       efx_rc_t rc;
+       tlv_cursor_t cursor;
+       uint32_t tag;
+
+       if ((rc = tlv_init_cursor_at_offset(&cursor, (uint8_t *)bufferp,
+                       buffer_size, offset)) != 0) {
+               goto fail1;
+       }
+
+       tag = tlv_tag(&cursor);
+       *tagp = tag;
+       if (tag == TLV_TAG_END) {
+               /*
+                * To allow stepping over the END tag, report the full tag
+                * length and a zero length value.
+                */
+               *lengthp = sizeof (tag);
+               *value_offsetp = sizeof (tag);
+       } else {
+               *lengthp = byte_offset(tlv_next_item_ptr(&cursor),
+                           cursor.current);
+               *value_offsetp = byte_offset((uint32_t *)tlv_value(&cursor),
+                           cursor.current);
+       }
+       return (0);
+
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+       return (rc);
+}
+
        __checkReturn           efx_rc_t
 ef10_nvram_buffer_get_item(
        __in_bcount(buffer_size)
@@ -965,16 +1023,17 @@ ef10_nvram_buffer_get_item(
        __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 *tagp,
+       __out_bcount_part(value_max_size, *lengthp)
+                               caddr_t valuep,
+       __in                    size_t value_max_size,
        __out                   uint32_t *lengthp)
 {
        efx_rc_t rc;
        tlv_cursor_t cursor;
-       uint32_t item_length;
+       uint32_t value_length;
 
-       if (item_max_size < length) {
+       if (buffer_size < (offset + length)) {
                rc = ENOSPC;
                goto fail1;
        }
@@ -984,14 +1043,15 @@ ef10_nvram_buffer_get_item(
                goto fail2;
        }
 
-       item_length = tlv_length(&cursor);
-       if (length < item_length) {
+       value_length = tlv_length(&cursor);
+       if (value_max_size < value_length) {
                rc = ENOSPC;
                goto fail3;
        }
-       memcpy(itemp, tlv_value(&cursor), item_length);
+       memcpy(valuep, tlv_value(&cursor), value_length);
 
-       *lengthp = item_length;
+       *tagp = tlv_tag(&cursor);
+       *lengthp = value_length;
 
        return (0);
 
@@ -1011,7 +1071,45 @@ ef10_nvram_buffer_insert_item(
                                caddr_t bufferp,
        __in                    size_t buffer_size,
        __in                    uint32_t offset,
-       __in_bcount(length)     caddr_t keyp,
+       __in                    uint32_t tag,
+       __in_bcount(length)     caddr_t valuep,
+       __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, tag, (uint8_t *)valuep, 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_modify_item(
+       __in_bcount(buffer_size)
+                               caddr_t bufferp,
+       __in                    size_t buffer_size,
+       __in                    uint32_t offset,
+       __in                    uint32_t tag,
+       __in_bcount(length)     caddr_t valuep,
        __in                    uint32_t length,
        __out                   uint32_t *lengthp)
 {
@@ -1023,7 +1121,7 @@ ef10_nvram_buffer_insert_item(
                goto fail1;
        }
 
-       rc = tlv_insert(&cursor, TLV_TAG_LICENSE, (uint8_t *)keyp, length);
+       rc = tlv_modify(&cursor, tag, (uint8_t *)valuep, length);
 
        if (rc != 0) {
                goto fail2;
@@ -1042,6 +1140,7 @@ fail1:
        return (rc);
 }
 
+
        __checkReturn           efx_rc_t
 ef10_nvram_buffer_delete_item(
        __in_bcount(buffer_size)
@@ -1808,7 +1907,7 @@ ef10_nvram_partn_write_segment_tlv(
                goto fail7;
 
        /* Unlock the partition */
-       ef10_nvram_partn_unlock(enp, partn, NULL);
+       (void) ef10_nvram_partn_unlock(enp, partn, NULL);
 
        EFSYS_KMEM_FREE(enp->en_esip, partn_size, partn_data);
 
@@ -1823,7 +1922,7 @@ fail5:
 fail4:
        EFSYS_PROBE(fail4);
 
-       ef10_nvram_partn_unlock(enp, partn, NULL);
+       (void) ef10_nvram_partn_unlock(enp, partn, NULL);
 fail3:
        EFSYS_PROBE(fail3);
 
@@ -2000,7 +2099,7 @@ ef10_nvram_partn_write(
        __in                    efx_nic_t *enp,
        __in                    uint32_t partn,
        __in                    unsigned int offset,
-       __out_bcount(size)      caddr_t data,
+       __in_bcount(size)       caddr_t data,
        __in                    size_t size)
 {
        size_t chunk;
@@ -2168,6 +2267,8 @@ static ef10_parttbl_entry_t medford2_parttbl[] = {
        PARTN_MAP_ENTRY(LICENSE,                ALL,    LICENSE),
        PARTN_MAP_ENTRY(EXPANSION_UEFI,         ALL,    UEFIROM),
        PARTN_MAP_ENTRY(MUM_FIRMWARE,           ALL,    MUM_FIRMWARE),
+       PARTN_MAP_ENTRY(DYNCONFIG_DEFAULTS,     ALL,    DYNCONFIG_DEFAULTS),
+       PARTN_MAP_ENTRY(ROMCONFIG_DEFAULTS,     ALL,    ROMCONFIG_DEFAULTS),
 };
 
 static __checkReturn           efx_rc_t