From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Raslan Darawsheh <rasland@nvidia.com>,
dev@dpdk.org, orika@nvidia.com, andrew.rybchenko@oktetlabs.ru
Cc: ivan.malov@oktetlabs.ru, ying.a.wang@intel.com,
olivier.matz@6wind.com, viacheslavo@nvidia.com,
shirik@nvidia.com, stable@dpdk.org,
David Marchand <david.marchand@redhat.com>,
Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [dpdk-dev] [PATCH v4 2/2] ethdev: update qfi definition
Date: Tue, 6 Apr 2021 17:09:53 +0100 [thread overview]
Message-ID: <536631b9-c634-ddac-c154-91978ffc29a5@intel.com> (raw)
In-Reply-To: <20210404074552.24190-3-rasland@nvidia.com>
On 4/4/2021 8:45 AM, Raslan Darawsheh wrote:
> qfi field is 8 bits which represent single bit for
> PPP (paging Policy Presence) single bit for RQI
> (Reflective QoS Indicator) and 6 bits for qfi
> (QoS Flow Identifier) based on RFC 38415-g30
>
> This update the doxygen format and the mask for qfi
> to properly identify the full 8 bits of the field.
>
> note: changing the default mask would cause different
> patterns generated by testpmd.
>
> Fixes: 346553db5bd1 ("ethdev: add GTP extension header to flow API")
> Cc: ying.a.wang@intel.com
> Cc: stable@dpdk.org
>
> Signed-off-by: Raslan Darawsheh <rasland@nvidia.com>
> ---
> doc/guides/testpmd_app_ug/testpmd_funcs.rst | 3 ++-
> lib/librte_ethdev/rte_flow.h | 20 +++++++++++++++++---
> 2 files changed, 19 insertions(+), 4 deletions(-)
>
> diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> index f59eb8a27d..dd39c4c3c2 100644
> --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> @@ -3742,7 +3742,8 @@ This section lists supported pattern items and their attributes, if any.
> - ``gtp_psc``: match GTP PDU extension header with type 0x85.
>
> - ``pdu_type {unsigned}``: PDU type.
> - - ``qfi {unsigned}``: QoS flow identifier.
> +
> + - ``qfi {unsigned}``: PPP, RQI and QoS flow identifier.
>
> - ``pppoes``, ``pppoed``: match PPPoE header.
>
> diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
> index 6cc57136ac..20b4389429 100644
> --- a/lib/librte_ethdev/rte_flow.h
> +++ b/lib/librte_ethdev/rte_flow.h
> @@ -20,6 +20,7 @@
> #include <rte_arp.h>
> #include <rte_common.h>
> #include <rte_ether.h>
> +#include <rte_gtp.h>
> #include <rte_icmp.h>
> #include <rte_ip.h>
> #include <rte_sctp.h>
> @@ -1421,16 +1422,29 @@ static const struct rte_flow_item_meta rte_flow_item_meta_mask = {
> *
> * Matches a GTP PDU extension header with type 0x85.
> */
> +RTE_STD_C11
> struct rte_flow_item_gtp_psc {
> - uint8_t pdu_type; /**< PDU type. */
> - uint8_t qfi; /**< QoS flow identifier. */
> + union {
> + struct {
> + /*
> + * These fields are retained for compatibility.
> + * Please switch to the new header field below.
> + */
> + uint8_t pdu_type; /**< PDU type. */
> + uint8_t qfi; /**< PPP, RQI, QoS flow identifier. */
> +
> + };
> + struct rte_gtp_psc_hdr hdr;
> + };
> };
This will change the struct size even with union, since old version is missing
all fields from protocol header. Struct size will go from 2 --> 5 bytes [1].
Since this is public struct, we can't change its size.
@Ori, Andrew,
Do you have a suggestion for next step?
- We can still add the "struct rte_gtp_psc_hdr", and add a deprecation notice
for "struct rte_flow_item_gtp_psc" to say it will use "struct rte_gtp_psc_hdr"
on 21.11.
- And for this release use the Raslan's first version:
- uint8_t qfi; /**< QoS flow identifier. */
+ uint8_t qfi; /**< PPP, RQI, QoS flow identifier. */
Does it make sense? Any comments?
[1]
struct rte_gtp_psc_hdr {
uint8_t ext_hdr_len; /* 0 1 */
uint8_t type:4; /* 1: 0 1 */
uint8_t qmp:1; /* 1: 4 1 */
/* XXX 3 bits hole, try to pack */
union {
struct {
uint8_t snp:1; /* 2: 0 1 */
uint8_t spare_dl1:2; /* 2: 1 1 */
}; /* 2 1 */
struct {
uint8_t dl_delay_ind:1; /* 2: 0 1 */
uint8_t ul_delay_ind:1; /* 2: 1 1 */
uint8_t snp_ul1:1; /* 2: 2 1 */
}; /* 2 1 */
}; /* 2 1 */
union {
struct {
uint8_t ppp:1; /* 3: 0 1 */
uint8_t rqi:1; /* 3: 1 1 */
}; /* 3 1 */
struct {
uint8_t n_delay_ind:1; /* 3: 0 1 */
uint8_t spare_ul2:1; /* 3: 1 1 */
}; /* 3 1 */
}; /* 3 1 */
uint8_t qfi:6; /* 4: 0 1 */
/* XXX 2 bits hole, try to pack */
uint8_t data[]; /* 5 0 */
/* size: 5, cachelines: 1, members: 7 */
/* sum members: 3 */
/* sum bitfield members: 11 bits, bit holes: 2, sum bit holes: 5 bits */
/* last cacheline: 5 bytes */
};
>
> /** Default mask for RTE_FLOW_ITEM_TYPE_GTP_PSC. */
> #ifndef __cplusplus
> static const struct rte_flow_item_gtp_psc
> rte_flow_item_gtp_psc_mask = {
> - .qfi = 0x3f,
> + .hdr.ppp = 1,
> + .hdr.rqi = 1,
> + .hdr.qfi = 0x3f,
> };
> #endif
>
>
next prev parent reply other threads:[~2021-04-06 16:10 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
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 [this message]
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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