From: Gagandeep Singh <g.si...@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.si...@nxp.com>
---
lib/cryptodev/rte_crypto_sym.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/cryptodev/rte_crypto_sym.h b/lib/cryptodev/rte_crypto_sym.h
index dcc0bd5933..e5cef1fb72 100644
--- a/lib/cryptodev/rte_crypto_sym.h
+++ b/lib/cryptodev/rte_crypto_sym.h
@@ -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);
--
2.17.1
