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From: Akhil Goyal <gakhil@marvell.com>
To: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	"dev@dpdk.org" <dev@dpdk.org>
Cc: "Zhang, Roy Fan" <roy.fan.zhang@intel.com>,
	Gagandeep Singh <g.singh@nxp.com>
Subject: Re: [dpdk-dev] [PATCH v2 02/15] crypto: add total raw buffer length
Date: Tue, 28 Sep 2021 07:05:47 +0000
Message-ID: <CO6PR18MB4484839ECBF5B9A25A1CAFD8D8A89@CO6PR18MB4484.namprd18.prod.outlook.com> (raw)
In-Reply-To: <DM6PR11MB44911F3B6FD66A26D5727E6B9AA79@DM6PR11MB4491.namprd11.prod.outlook.com>

> Hi Akhil,
> 
> > > > On 9/21/2021 12:58 AM, Akhil Goyal wrote:
> > > > >>> 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>
> > > > >>> ---
> > > > >>>   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;
> > > > >> That doesn't look right.
> > > > >> We should take into a count mbuf headroom and input offset.
> > > > >> Something like:
> > > > >> vec[0].tot_len = mb->buf_len - rte_pktmbuf_headroom(m) - ofs;
> > > > >> Same in other places below.
> > > > >>
> > > > > I believe the packet can expand into headroom based on the protocol
> > > support.
> > > > Yes, total length is representing the total buffer length available. The
> > > > security protocol shall take care of the headroom and offsets.
> > >
> > > Hmm, and how it will now how many bytes are in head-room, and how
> > > many are in tail-room?
> > > We either need to provide values for both, or assume that only tail-room
> is
> > > available for the driver.
> > I believe it should be starting point where output can be written till the end
> of buffer.
> 
> Right, that's:
> base = rte_pktmbuf_mtod_offset(mb, void *, ofs);
> 
> > There should not be any headroom and tailroom for raw buffers.
> 
> I am not talking about raw buffers, what I am saying that some space in the
> mbuf
> might be already occupied, that's why we have data_off inside rte_mbuf, etc.
> 
> > It should be mbuf->buf_len - ofs.
> 
> No, it should be:
> len = mb->buf_len - rte_pktmbuf_headroom(m) - ofs;
> Otherwise PMD can overwrite memory beyond its buf_len.
> 
@Hemant: Do you agree. Please send next version.

  reply	other threads:[~2021-09-28  7:05 UTC|newest]

Thread overview: 115+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-12  7:12 [dpdk-dev] [RFC 00/16] crypto: add raw vector support in DPAAx Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 01/16] crypto: change sgl to src_sgl in vector Hemant Agrawal
2021-08-12  8:22   ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-12  7:12 ` [dpdk-dev] [RFC 02/16] crypto: add total raw buffer length Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 03/16] crypto: add dest_sgl in raw vector APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 04/16] crypto: enhance raw process for protocol offload Hemant Agrawal
2021-08-12  8:11   ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-12  7:12 ` [dpdk-dev] [RFC 05/16] crypto/dpaa2_sec: support raw datapath APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 06/16] crypto/dpaa2_sec: support AUTH only with raw buffer APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 07/16] crypto/dpaa2_sec: support AUTHENC " Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 08/16] crypto/dpaa2_sec: support AEAD " Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 09/16] crypto/dpaa2_sec: support OOP with raw buffer API Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 10/16] crypto/dpaa2_sec: fix ctx memset size Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 11/16] crypto/dpaa2_sec: enhance error checks with raw buffer APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 12/16] crypto/dpaa_sec: support raw datapath APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 13/16] crypto/dpaa_sec: support authonly and chain with raw APIs Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 14/16] crypto/dpaa_sec: support AEAD and proto " Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 15/16] test/crypto: add raw API test for dpaax Hemant Agrawal
2021-08-12  7:12 ` [dpdk-dev] [RFC 16/16] test/crypto: enabling raw API support in 5G algos Hemant Agrawal
2021-08-25  7:14 ` [dpdk-dev] [PATCH 00/15] crypto: add raw vector support in DPAAx Hemant Agrawal
2021-08-25  7:14   ` [dpdk-dev] [PATCH 01/15] crypto: change sgl to src_sgl in vector Hemant Agrawal
2021-09-06 18:36     ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-25  7:14   ` [dpdk-dev] [PATCH 02/15] crypto: add total raw buffer length Hemant Agrawal
2021-09-06 18:36     ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-25  7:14   ` [dpdk-dev] [PATCH 03/15] crypto: add dest_sgl in raw vector APIs Hemant Agrawal
2021-09-06 18:37     ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-25  7:14   ` [dpdk-dev] [PATCH 04/15] crypto: fix raw process for multi-seg case Hemant Agrawal
2021-09-06 18:38     ` [dpdk-dev] [EXT] " Akhil Goyal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 05/15] crypto/dpaa2_sec: support raw datapath APIs Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 06/15] crypto/dpaa2_sec: support AUTH only with raw buffer APIs Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 07/15] crypto/dpaa2_sec: support AUTHENC " Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 08/15] crypto/dpaa2_sec: support AEAD " Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 09/15] crypto/dpaa2_sec: support OOP with raw buffer API Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 10/15] crypto/dpaa2_sec: enhance error checks with raw buffer APIs Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 11/15] crypto/dpaa_sec: support raw datapath APIs Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 12/15] crypto/dpaa_sec: support authonly and chain with raw APIs Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 13/15] crypto/dpaa_sec: support AEAD and proto " Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 14/15] test/crypto: add raw API test for dpaax Hemant Agrawal
2021-08-25  7:15   ` [dpdk-dev] [PATCH 15/15] test/crypto: add raw API support in 5G algos Hemant Agrawal
2021-09-06 18:45     ` [dpdk-dev] [EXT] " Akhil Goyal
2021-09-06 18:46   ` [dpdk-dev] [EXT] [PATCH 00/15] crypto: add raw vector support in DPAAx Akhil Goyal
2021-09-07  7:59   ` [dpdk-dev] [PATCH v2 " Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 01/15] crypto: change sgl to src_sgl in vector Hemant Agrawal
2021-09-16 11:38       ` Ananyev, Konstantin
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 02/15] crypto: add total raw buffer length Hemant Agrawal
2021-09-16 11:42       ` Ananyev, Konstantin
2021-09-20 19:28         ` Akhil Goyal
2021-09-21  9:59           ` Hemant Agrawal
2021-09-21 10:04             ` Ananyev, Konstantin
2021-09-24 18:06               ` Akhil Goyal
2021-09-27  9:23                 ` Ananyev, Konstantin
2021-09-28  7:05                   ` Akhil Goyal [this message]
2021-09-28  8:20                     ` Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 03/15] crypto: add dest_sgl in raw vector APIs Hemant Agrawal
2021-09-16 11:44       ` Ananyev, Konstantin
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 04/15] crypto: fix raw process for multi-seg case Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 05/15] crypto/dpaa2_sec: support raw datapath APIs Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 06/15] crypto/dpaa2_sec: support AUTH only with raw buffer APIs Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 07/15] crypto/dpaa2_sec: support AUTHENC " Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 08/15] crypto/dpaa2_sec: support AEAD " Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 09/15] crypto/dpaa2_sec: support OOP with raw buffer API Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 10/15] crypto/dpaa2_sec: enhance error checks with raw buffer APIs Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 11/15] crypto/dpaa_sec: support raw datapath APIs Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 12/15] crypto/dpaa_sec: support authonly and chain with raw APIs Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 13/15] crypto/dpaa_sec: support AEAD and proto " Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 14/15] test/crypto: add raw API test for dpaax Hemant Agrawal
2021-09-07  7:59     ` [dpdk-dev] [PATCH v2 15/15] test/crypto: add raw API support in 5G algos Hemant Agrawal
2021-09-15 16:01     ` [dpdk-dev] [PATCH v2 00/15] crypto: add raw vector support in DPAAx Troy, Rebecca
2021-10-13 19:00     ` [dpdk-dev] [PATCH v4 " Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 01/15] crypto: change sgl to src_sgl in vector Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 02/15] crypto: add total raw buffer length Hemant Agrawal
2021-10-14 12:39         ` Zhang, Roy Fan
2021-10-17  8:30           ` Hemant Agrawal
2021-10-15 17:45         ` Ananyev, Konstantin
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 03/15] crypto: add dest_sgl in raw vector APIs Hemant Agrawal
2021-10-17 12:21         ` [dpdk-dev] [EXT] " Akhil Goyal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 04/15] crypto: fix raw process for multi-seg case Hemant Agrawal
2021-10-15 17:39         ` Ananyev, Konstantin
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 05/15] crypto/dpaa2_sec: support raw datapath APIs Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 06/15] crypto/dpaa2_sec: support AUTH only with raw buffer APIs Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 07/15] crypto/dpaa2_sec: support AUTHENC " Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 08/15] crypto/dpaa2_sec: support AEAD " Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 09/15] crypto/dpaa2_sec: support OOP with raw buffer API Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 10/15] crypto/dpaa2_sec: enhance error checks with raw buffer APIs Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 11/15] crypto/dpaa_sec: support raw datapath APIs Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 12/15] crypto/dpaa_sec: support authonly and chain with raw APIs Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 13/15] crypto/dpaa_sec: support AEAD and proto " Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 14/15] test/crypto: add raw API test for dpaax Hemant Agrawal
2021-10-13 19:00       ` [dpdk-dev] [PATCH v4 15/15] test/crypto: add raw API support in 5G algos Hemant Agrawal
2021-10-17 16:16       ` [dpdk-dev] [PATCH v5 00/15] crypto: add raw vector support in DPAAx Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 01/15] crypto: change sgl to src_sgl in vector Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 02/15] crypto: add total raw buffer length Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 03/15] crypto: add dest_sgl in raw vector APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 04/15] crypto: fix raw process for multi-seg case Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 05/15] crypto/dpaa2_sec: support raw datapath APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 06/15] crypto/dpaa2_sec: support AUTH only with raw buffer APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 07/15] crypto/dpaa2_sec: support AUTHENC " Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 08/15] crypto/dpaa2_sec: support AEAD " Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 09/15] crypto/dpaa2_sec: support OOP with raw buffer API Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 10/15] crypto/dpaa2_sec: enhance error checks with raw buffer APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 11/15] crypto/dpaa_sec: support raw datapath APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 12/15] crypto/dpaa_sec: support authonly and chain with raw APIs Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 13/15] crypto/dpaa_sec: support AEAD and proto " Hemant Agrawal
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 14/15] test/crypto: add raw API test for dpaax Hemant Agrawal
2021-10-20  9:08           ` Thomas Monjalon
2021-10-20  9:15             ` [dpdk-dev] [EXT] " Akhil Goyal
2021-10-20  9:21               ` Thomas Monjalon
2021-10-20  9:32                 ` Akhil Goyal
2021-10-20 12:13                   ` Thomas Monjalon
2021-10-20 12:25                     ` Akhil Goyal
2021-10-20 12:43                     ` Zhang, Roy Fan
2021-10-20 13:34                       ` Thomas Monjalon
2021-10-17 16:16         ` [dpdk-dev] [PATCH v5 15/15] test/crypto: add raw API support in 5G algos Hemant Agrawal
2021-10-17 17:59         ` [dpdk-dev] [EXT] [PATCH v5 00/15] crypto: add raw vector support in DPAAx Akhil Goyal
2021-10-18  7:33           ` Zhang, Roy Fan

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