[02/15] crypto: add total raw buffer length
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Commit Message
From: Gagandeep Singh <g.singh@nxp.com>
The current crypto raw data vectors is extended to support
rte_security usecases, where we need total data length to know
how much additional memory space is available in buffer other
than data length so that driver/HW can write expanded size
data after encryption.
Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
lib/cryptodev/rte_crypto_sym.h | 6 ++++++
1 file changed, 6 insertions(+)
Comments
> From: Gagandeep Singh <g.singh@nxp.com>
>
> The current crypto raw data vectors is extended to support
> rte_security usecases, where we need total data length to know
> how much additional memory space is available in buffer other
> than data length so that driver/HW can write expanded size
> data after encryption.
>
> Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
> ---
Acked-by: Akhil Goyal <gakhil@marvell.com>
@@ -37,6 +37,8 @@ struct rte_crypto_vec {
rte_iova_t iova;
/** length of the data buffer */
uint32_t len;
+ /** total buffer length*/
+ uint32_t tot_len;
};
/**
@@ -980,12 +982,14 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t ofs, uint32_t len,
seglen = mb->data_len - ofs;
if (len <= seglen) {
vec[0].len = len;
+ vec[0].tot_len = mb->buf_len;
return 1;
}
/* data spread across segments */
vec[0].len = seglen;
left = len - seglen;
+ vec[0].tot_len = mb->buf_len;
for (i = 1, nseg = mb->next; nseg != NULL; nseg = nseg->next, i++) {
vec[i].base = rte_pktmbuf_mtod(nseg, void *);
@@ -995,6 +999,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t ofs, uint32_t len,
if (left <= seglen) {
/* whole requested data is completed */
vec[i].len = left;
+ vec[i].tot_len = mb->buf_len;
left = 0;
break;
}
@@ -1002,6 +1007,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t ofs, uint32_t len,
/* use whole segment */
vec[i].len = seglen;
left -= seglen;
+ vec[i].tot_len = mb->buf_len;
}
RTE_ASSERT(left == 0);