* All rights reserved.
*/
+#include <rte_common.h>
#include "ulp_utils.h"
#include "bnxt_tf_common.h"
* big endian. All fields are packed with this order.
*
* returns 0 on error or 1 on success
+ * Notes - If bitlen is zero then set it to max.
*/
uint32_t
ulp_blob_init(struct ulp_blob *blob,
BNXT_TF_DBG(ERR, "invalid argument\n");
return 0; /* failure */
}
- blob->bitlen = bitlen;
+ if (bitlen)
+ blob->bitlen = bitlen;
+ else
+ blob->bitlen = BNXT_ULP_FLMP_BLOB_SIZE_IN_BITS;
blob->byte_order = order;
blob->write_idx = 0;
memset(blob->data, 0, sizeof(blob->data));
* The offset of the data is updated after each push of data.
* NULL returned on error, pointer pushed value otherwise.
*/
-uint32_t
+int32_t
ulp_blob_push_encap(struct ulp_blob *blob,
uint8_t *data,
uint32_t datalen)
if (!blob || !data ||
datalen > (uint32_t)(blob->bitlen - blob->write_idx)) {
BNXT_TF_DBG(ERR, "invalid argument\n");
- return 0;
+ return -1;
}
initial_size = ULP_BYTE_2_BITS(sizeof(uint64_t)) -
}
if (!ulp_blob_push(blob, val, size)) {
BNXT_TF_DBG(ERR, "push field failed\n");
- return 0;
+ return -1;
}
val += ULP_BITS_2_BYTE(size);
write_size -= size;
return datalen;
}
+/*
+ * Adds pad to an initialized blob at the current offset based on
+ * the alignment.
+ *
+ * blob [in] The blob that needs to be aligned
+ *
+ * align [in] Alignment in bits.
+ *
+ * returns the number of pad bits added, -1 on failure
+ */
+int32_t
+ulp_blob_pad_align(struct ulp_blob *blob,
+ uint32_t align)
+{
+ int32_t pad = 0;
+
+ pad = RTE_ALIGN(blob->write_idx, align) - blob->write_idx;
+ if (pad > (int32_t)(blob->bitlen - blob->write_idx)) {
+ BNXT_TF_DBG(ERR, "Pad too large for blob\n");
+ return -1;
+ }
+ blob->write_idx += pad;
+ return pad;
+}
+
/* Get data from src and put into dst using little-endian format */
static void
ulp_bs_get_lsb(uint8_t *src, uint16_t bitpos, uint8_t bitlen, uint8_t *dst)
return blob->data;
}
+/*
+ * Get the data length of the binary blob.
+ *
+ * blob [in] The blob's data len to be retrieved.
+ *
+ * returns length of the binary blob
+ */
+uint16_t
+ulp_blob_data_len_get(struct ulp_blob *blob)
+{
+ /* validate the arguments */
+ if (!blob) {
+ BNXT_TF_DBG(ERR, "invalid argument\n");
+ return 0; /* failure */
+ }
+ return blob->write_idx;
+}
+
/*
* Set the encap swap start index of the binary blob.
*
* vice-versa.
*
* blob [in] The blob's data to be used for swap.
+ * chunk_size[in] the swap is done within the chunk in bytes
*
* returns void.
*/
void
-ulp_blob_perform_byte_reverse(struct ulp_blob *blob)
+ulp_blob_perform_byte_reverse(struct ulp_blob *blob,
+ uint32_t chunk_size)
{
- uint32_t idx = 0, num = 0;
+ uint32_t idx = 0, jdx = 0, num = 0;
uint8_t xchar;
+ uint8_t *buff;
/* validate the arguments */
if (!blob) {
return; /* failure */
}
- num = ULP_BITS_2_BYTE_NR(blob->write_idx);
- for (idx = 0; idx < (num / 2); idx++) {
- xchar = blob->data[idx];
- blob->data[idx] = blob->data[(num - 1) - idx];
- blob->data[(num - 1) - idx] = xchar;
+ buff = blob->data;
+ num = ULP_BITS_2_BYTE(blob->write_idx) / chunk_size;
+ for (idx = 0; idx < num; idx++) {
+ for (jdx = 0; jdx < chunk_size / 2; jdx++) {
+ xchar = buff[jdx];
+ buff[jdx] = buff[(chunk_size - 1) - jdx];
+ buff[(chunk_size - 1) - jdx] = xchar;
+ }
+ buff += chunk_size;
}
}
}
}
+static int32_t
+ulp_blob_msb_block_merge(struct ulp_blob *dst, struct ulp_blob *src,
+ uint32_t block_size, uint32_t pad)
+{
+ uint32_t i, k, write_bytes, remaining;
+ uint16_t num;
+ uint8_t *src_buf = ulp_blob_data_get(src, &num);
+ uint8_t bluff;
+
+ for (i = 0; i < num;) {
+ if (((dst->write_idx % block_size) + (num - i)) > block_size)
+ write_bytes = block_size - dst->write_idx;
+ else
+ write_bytes = num - i;
+ for (k = 0; k < ULP_BITS_2_BYTE_NR(write_bytes); k++) {
+ ulp_bs_put_msb(dst->data, dst->write_idx, ULP_BLOB_BYTE,
+ *src_buf);
+ dst->write_idx += ULP_BLOB_BYTE;
+ src_buf++;
+ }
+ remaining = write_bytes % ULP_BLOB_BYTE;
+ if (remaining) {
+ bluff = (*src_buf) & ((uint8_t)-1 <<
+ (ULP_BLOB_BYTE - remaining));
+ ulp_bs_put_msb(dst->data, dst->write_idx,
+ ULP_BLOB_BYTE, bluff);
+ dst->write_idx += remaining;
+ }
+ if (write_bytes != (num - i)) {
+ /* add the padding */
+ ulp_blob_pad_push(dst, pad);
+ if (remaining) {
+ ulp_bs_put_msb(dst->data, dst->write_idx,
+ ULP_BLOB_BYTE - remaining,
+ *src_buf);
+ dst->write_idx += ULP_BLOB_BYTE - remaining;
+ src_buf++;
+ }
+ }
+ i += write_bytes;
+ }
+ return 0;
+}
+
+/*
+ * Perform the blob buffer merge.
+ * This api makes the src blob merged to the dst blob.
+ * The block size and pad size help in padding the dst blob
+ *
+ * dst [in] The destination blob, the blob to be merged.
+ * src [in] The src blob.
+ * block_size [in] The size of the block after which padding gets applied.
+ * pad [in] The size of the pad to be applied.
+ *
+ * returns 0 on success.
+ */
+int32_t
+ulp_blob_block_merge(struct ulp_blob *dst, struct ulp_blob *src,
+ uint32_t block_size, uint32_t pad)
+{
+ if (dst->byte_order == BNXT_ULP_BYTE_ORDER_BE &&
+ src->byte_order == BNXT_ULP_BYTE_ORDER_BE)
+ return ulp_blob_msb_block_merge(dst, src, block_size, pad);
+
+ BNXT_TF_DBG(ERR, "block merge not implemented yet\n");
+ return -EINVAL;
+}
+
+int32_t
+ulp_blob_append(struct ulp_blob *dst, struct ulp_blob *src,
+ uint16_t src_offset, uint16_t src_len)
+{
+ uint32_t k, remaining;
+ uint16_t num;
+ uint8_t bluff;
+ uint8_t *src_buf = ulp_blob_data_get(src, &num);
+
+ if ((src_offset + src_len) > num)
+ return -EINVAL;
+
+ /* Only supporting BE for now */
+ if (src->byte_order != BNXT_ULP_BYTE_ORDER_BE ||
+ dst->byte_order != BNXT_ULP_BYTE_ORDER_BE)
+ return -EINVAL;
+
+ /* Handle if the source offset is not on a byte boundary */
+ remaining = src_offset % ULP_BLOB_BYTE;
+ if (remaining) {
+ bluff = src_buf[src_offset / ULP_BLOB_BYTE] & ((uint8_t)-1 >>
+ (ULP_BLOB_BYTE - remaining));
+ ulp_bs_put_msb(dst->data, dst->write_idx,
+ ULP_BLOB_BYTE, bluff);
+ dst->write_idx += remaining;
+ }
+
+ /* Push the byte aligned pieces */
+ for (k = 0; k < ULP_BITS_2_BYTE_NR(src_len); k++) {
+ ulp_bs_put_msb(dst->data, dst->write_idx, ULP_BLOB_BYTE,
+ *src_buf);
+ dst->write_idx += ULP_BLOB_BYTE;
+ src_buf++;
+ }
+
+ /* Handle the remaining if length is not a byte boundary */
+ remaining = src_len % ULP_BLOB_BYTE;
+ if (remaining) {
+ bluff = (*src_buf) & ((uint8_t)-1 <<
+ (ULP_BLOB_BYTE - remaining));
+ ulp_bs_put_msb(dst->data, dst->write_idx,
+ ULP_BLOB_BYTE, bluff);
+ dst->write_idx += remaining;
+ }
+
+ return 0;
+}
+
/*
* Read data from the operand
*
}
/* Function to check if bitmap is not zero. Return 1 on success */
-uint32_t ulp_bitmap_notzero(uint8_t *bitmap, int32_t size)
+uint32_t ulp_bitmap_notzero(const uint8_t *bitmap, int32_t size)
{
while (size-- > 0) {
if (*bitmap != 0)
}
return 0;
}
+
+/* returns 0 if input is power of 2 */
+int32_t ulp_util_is_power_of_2(uint64_t x)
+{
+ if (((x - 1) & x))
+ return -1;
+ return 0;
+}
git.droids-corp.org / dpdk.git / blobdiff