From: Gagandeep Singh Date: Wed, 13 Oct 2021 19:00:19 +0000 (+0530) Subject: cryptodev: add total raw buffer length X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=6afd461f9fbefdb0fbac17de7ed27cba96a5d14c;p=dpdk.git cryptodev: add total raw buffer length 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 Acked-by: Akhil Goyal Acked-by: Konstantin Ananyev --- diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst index 3b92b20389..5cdc91d7e5 100644 --- a/doc/guides/rel_notes/deprecation.rst +++ b/doc/guides/rel_notes/deprecation.rst @@ -190,13 +190,6 @@ Deprecation Notices This field will be null for inplace processing. This change is targeted for DPDK 21.11. -* cryptodev: The structure ``rte_crypto_vec`` would be updated to add - ``tot_len`` to support total buffer length. - This is required for security cases like IPsec and PDCP encryption offload - 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. - This change is targeted for DPDK 21.11. - * cryptodev: Hide structures ``rte_cryptodev_sym_session`` and ``rte_cryptodev_asym_session`` to remove unnecessary indirection between session and the private data of session. An opaque pointer can be exposed diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst index 3370be94af..ccc0e8aaed 100644 --- a/doc/guides/rel_notes/release_21_11.rst +++ b/doc/guides/rel_notes/release_21_11.rst @@ -269,6 +269,9 @@ API Changes * cryptodev: The field ``dataunit_len`` of the ``struct rte_crypto_cipher_xform`` moved to the end of the structure and extended to ``uint32_t``. +* cryptodev: The structure ``rte_crypto_vec`` was updated to add ``tot_len`` + field to support total buffer length to facilitate protocol offload case. + ABI Changes ----------- diff --git a/lib/cryptodev/rte_crypto_sym.h b/lib/cryptodev/rte_crypto_sym.h index f8cb2ccca0..1f2f0a572c 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; }; /** @@ -963,6 +965,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t ofs, uint32_t len, vec[0].base = rte_pktmbuf_mtod_offset(mb, void *, ofs); vec[0].iova = rte_pktmbuf_iova_offset(mb, ofs); + vec[0].tot_len = mb->buf_len - rte_pktmbuf_headroom(mb) - ofs; /* whole data lies in the first segment */ seglen = mb->data_len - ofs; @@ -978,6 +981,7 @@ rte_crypto_mbuf_to_vec(const struct rte_mbuf *mb, uint32_t ofs, uint32_t len, vec[i].base = rte_pktmbuf_mtod(nseg, void *); vec[i].iova = rte_pktmbuf_iova(nseg); + vec[i].tot_len = mb->buf_len - rte_pktmbuf_headroom(mb) - ofs; seglen = nseg->data_len; if (left <= seglen) {