From: Raslan Darawsheh <rasland@nvidia.com> To: Olivier Matz <olivier.matz@6wind.com> Cc: "dev@dpdk.org" <dev@dpdk.org>, "ferruh.yigit@intel.com" <ferruh.yigit@intel.com>, Ori Kam <orika@nvidia.com>, "andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>, "ivan.malov@oktetlabs.ru" <ivan.malov@oktetlabs.ru>, "ying.a.wang@intel.com" <ying.a.wang@intel.com>, Slava Ovsiienko <viacheslavo@nvidia.com>, Shiri Kuzin <shirik@nvidia.com> Subject: Re: [dpdk-dev] [PATCH v4 1/2] ethdev: add new ext hdr for gtp psc Date: Thu, 8 Apr 2021 12:37:27 +0000 Message-ID: <DM6PR12MB2748875A91FFD2F5CE464ECCCF749@DM6PR12MB2748.namprd12.prod.outlook.com> (raw) In-Reply-To: <20210408122956.GX1650@platinum> Hi Olivier, > -----Original Message----- > From: Olivier Matz <olivier.matz@6wind.com> > Sent: Thursday, April 8, 2021 3:30 PM > To: Raslan Darawsheh <rasland@nvidia.com> > Cc: dev@dpdk.org; ferruh.yigit@intel.com; Ori Kam <orika@nvidia.com>; > andrew.rybchenko@oktetlabs.ru; ivan.malov@oktetlabs.ru; > ying.a.wang@intel.com; Slava Ovsiienko <viacheslavo@nvidia.com>; Shiri > Kuzin <shirik@nvidia.com> > Subject: Re: [PATCH v4 1/2] ethdev: add new ext hdr for gtp psc > > Hi Raslan, > > On Sun, Apr 04, 2021 at 10:45:51AM +0300, Raslan Darawsheh wrote: > > Define new rte header for gtp PDU session container > > based on RFC 38415-g30 > > Do you have a link to this RFC? Yes sure, https://www.3gpp.org/ftp/Specs/archive/38_series/38.415/38415-g30.zip > > > Signed-off-by: Raslan Darawsheh <rasland@nvidia.com> > > --- > > lib/librte_net/rte_gtp.h | 34 ++++++++++++++++++++++++++++++++++ > > 1 file changed, 34 insertions(+) > > > > diff --git a/lib/librte_net/rte_gtp.h b/lib/librte_net/rte_gtp.h > > index 6a6f9b238d..088b0b5a53 100644 > > --- a/lib/librte_net/rte_gtp.h > > +++ b/lib/librte_net/rte_gtp.h > > @@ -61,6 +61,40 @@ struct rte_gtp_hdr_ext_word { > > uint8_t next_ext; /**< Next Extension Header Type. */ > > } __rte_packed; > > > > +/** > > + * Optional extension for GTP with next_ext set to 0x85 > > + * defined based on RFC 38415-g30. > > + */ > > +__extension__ > > +struct rte_gtp_psc_hdr { > > + uint8_t ext_hdr_len; /**< PDU ext hdr len in multiples of 4 bytes */ > > + uint8_t type:4; /**< PDU type */ > > + uint8_t qmp:1; /**< Qos Monitoring Packet */ > > + union { > > + struct { > > + uint8_t snp:1; /**< Sequence number presence */ > > + uint8_t spare_dl1:2; /**< spare down link bits */ > > + }; > > + struct { > > + uint8_t dl_delay_ind:1; /**< dl delay result presence > */ > > + uint8_t ul_delay_ind:1; /**< ul delay result presence > */ > > + uint8_t snp_ul1:1; /**< Sequence number presence > ul */ > > + }; > > + }; > > + union { > > + struct { > > + uint8_t ppp:1; /**< Paging policy presence */ > > + uint8_t rqi:1; /**< Reflective Qos Indicator */ > > + }; > > + struct { > > + uint8_t n_delay_ind:1; /**< N3/N9 delay result > presence */ > > + uint8_t spare_ul2:1; /**< spare up link bits */ > > + }; > > + }; > > + uint8_t qfi:6; /**< Qos Flow Identifier */ > > + uint8_t data[0]; /**< data feilds */ > > +} __rte_packed; > > With this header, sizeof(rte_gtp_psc_hdr) = 5, is it really expected? The data[0] is variable length data, I guess I should send another version to mention that in the comment maybe. The header size according to the spec should be 4 octets aligned in general. > > It would help to see the specification to have a better idea of how to Sure, I've just posted the link above, please let me know of any suggestion that you have, and I'll be glad to do accordingly. > split, but a possible solution is to do something like this: > > struct rte_gtp_psc_generic_hdr { > uint8_t ext_hdr_len; > uint8_t type:4 > uint8_t qmp:1; > uint8_t pad:3; > }; > > struct rte_gtp_psc_<name1>_hdr { > uint8_t ext_hdr_len; > uint8_t type:4 > uint8_t qmp:1; > uint8_t uint8_t snp:1; > uint8_t spare_dl1:2; > ... > }; > > ... > > struct rte_gtp_psc_hdr { > union { > struct rte_gtp_psc_generic_hdr generic; > struct rte_gtp_psc_<name1>_hdr <name1>; > struct rte_gtp_psc_<name2>_hdr <name2>; > }; > }; > > Also, you need to take care about endianness. > > > Regards, > Olivier Kindest regards Raslan Darawsheh
next prev parent reply other threads:[~2021-04-08 12:37 UTC|newest] Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-03-23 12:11 [dpdk-dev] [PATCH] ethdev: update qfi definition Raslan Darawsheh 2021-03-26 13:12 ` Ferruh Yigit 2021-03-29 8:53 ` Ori Kam 2021-03-29 9:06 ` Raslan Darawsheh 2021-03-29 11:14 ` Ferruh Yigit 2021-03-30 7:50 ` [dpdk-dev] [PATCH v2 0/2] fix gtp psc qfi support Raslan Darawsheh 2021-03-30 7:50 ` [dpdk-dev] [PATCH v2 1/2] ethdev: add new ext hdr for gtp psc Raslan Darawsheh 2021-03-30 8:00 ` [dpdk-dev] [PATCH v3 0/2] fix gtp psc qfi support Raslan Darawsheh 2021-03-30 8:00 ` [dpdk-dev] [PATCH v3 1/2] ethdev: add new ext hdr for gtp psc Raslan Darawsheh 2021-04-01 16:51 ` Ferruh Yigit 2021-04-04 7:17 ` Raslan Darawsheh 2021-03-30 8:00 ` [dpdk-dev] [PATCH v3 2/2] ethdev: update qfi definition Raslan Darawsheh 2021-04-01 16:54 ` Ferruh Yigit 2021-04-04 7:18 ` Raslan Darawsheh 2021-04-04 7:45 ` [dpdk-dev] [PATCH v4 0/2] fix gtp psc qfi support Raslan Darawsheh 2021-04-04 7:45 ` [dpdk-dev] [PATCH v4 1/2] ethdev: add new ext hdr for gtp psc Raslan Darawsheh 2021-04-08 12:29 ` Olivier Matz 2021-04-08 12:37 ` Raslan Darawsheh [this message] 2021-04-08 14:10 ` Ferruh Yigit 2021-04-08 14:10 ` Olivier Matz 2021-04-13 7:45 ` Raslan Darawsheh 2021-04-29 16:29 ` Tyler Retzlaff 2021-06-08 12:13 ` Andrew Rybchenko 2021-04-04 7:45 ` [dpdk-dev] [PATCH v4 2/2] ethdev: update qfi definition Raslan Darawsheh 2021-04-06 16:09 ` Ferruh Yigit 2021-04-13 8:14 ` Raslan Darawsheh 2021-04-13 9:24 ` Ori Kam 2021-04-14 12:16 ` Ferruh Yigit 2021-04-15 6:33 ` Raslan Darawsheh 2021-04-29 8:10 ` [dpdk-dev] [PATCH v5 0/1] add new hdr for gtp qfi Raslan Darawsheh 2021-04-29 8:10 ` [dpdk-dev] [PATCH v5 1/1] ethdev: add new ext hdr for gtp psc Raslan Darawsheh 2021-05-11 11:46 ` Ferruh Yigit 2021-06-08 12:17 ` Andrew Rybchenko 2021-06-08 12:18 ` Andrew Rybchenko 2021-06-08 14:07 ` Raslan Darawsheh 2021-03-30 7:50 ` [dpdk-dev] [PATCH v2 2/2] ethdev: update qfi definition Raslan Darawsheh 2021-04-14 12:40 ` [dpdk-dev] [PATCH] " Ferruh Yigit
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