From: "Liu, Jijiang" <jijiang.liu@intel.com>
To: Olivier Matz <olivier.matz@6wind.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v2 02/20] mbuf: enhance the API documentation of offload flags
Date: Wed, 11 Feb 2015 07:15:25 +0000 [thread overview]
Message-ID: <1ED644BD7E0A5F4091CF203DAFB8E4CC01DDA2CF@SHSMSX101.ccr.corp.intel.com> (raw)
In-Reply-To: <F35DEAC7BCE34641BA9FAC6BCA4A12E70A806563@SHSMSX104.ccr.corp.intel.com>
Hi Olivier,
> -----Original Message-----
> From: Zhang, Helin
> Sent: Tuesday, February 10, 2015 1:39 PM
> To: Olivier Matz; dev@dpdk.org
> Cc: Ananyev, Konstantin; Liu, Jijiang
> Subject: RE: [PATCH v2 02/20] mbuf: enhance the API documentation of offload
> flags
>
>
>
> > -----Original Message-----
> > From: Olivier Matz [mailto:olivier.matz@6wind.com]
> > Sent: Wednesday, February 4, 2015 5:25 PM
> > To: dev@dpdk.org
> > Cc: Ananyev, Konstantin; Liu, Jijiang; Zhang, Helin;
> > olivier.matz@6wind.com
> > Subject: [PATCH v2 02/20] mbuf: enhance the API documentation of
> > offload flags
> >
> > Based on http://dpdk.org/ml/archives/dev/2015-January/011127.html
> >
> > Also adapt the csum forward engine code to the API.
> >
> > Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> > ---
> > app/test-pmd/csumonly.c | 6 +++---
> > lib/librte_mbuf/rte_mbuf.h | 43
> > ++++++++++++++++++++++++++++++++++++-------
> > 2 files changed, 39 insertions(+), 10 deletions(-)
> >
> > diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c index
> > 41711fd..4b438d1 100644
> > --- a/app/test-pmd/csumonly.c
> > +++ b/app/test-pmd/csumonly.c
> > @@ -183,16 +183,15 @@ process_inner_cksums(void *l3_hdr, uint16_t
> > ethertype, uint16_t l3_len,
> > ipv4_hdr = l3_hdr;
> > ipv4_hdr->hdr_checksum = 0;
> >
> > + ol_flags |= PKT_TX_IPV4;
> > if (tso_segsz != 0 && l4_proto == IPPROTO_TCP) {
> > ol_flags |= PKT_TX_IP_CKSUM;
> > } else {
> > if (testpmd_ol_flags &
> TESTPMD_TX_OFFLOAD_IP_CKSUM)
> > ol_flags |= PKT_TX_IP_CKSUM;
> > - else {
> > + else
> > ipv4_hdr->hdr_checksum =
> > rte_ipv4_cksum(ipv4_hdr);
> > - ol_flags |= PKT_TX_IPV4;
> > - }
> > }
> > } else if (ethertype == _htons(ETHER_TYPE_IPv6))
> > ol_flags |= PKT_TX_IPV6;
> > @@ -261,6 +260,7 @@ process_outer_cksums(void *outer_l3_hdr, uint16_t
> > outer_ethertype,
> >
> > if (outer_ethertype == _htons(ETHER_TYPE_IPv4)) {
> > ipv4_hdr->hdr_checksum = 0;
> > + ol_flags |= PKT_TX_OUTER_IPV4;
> >
Look at the codes again, you should extend process_outer_cksums() to support other tunneling packet.
The code changes like below,
process_outer_cksums(void *outer_l3_hdr, struct testpmd_offload_info *info,
uint16_t testpmd_ol_flags, uint16_t l4_proto) // add the l4_proto parameter here.
...
/* outer UDP checksum is always done in software as we have no
* hardware supporting it today, and no API for it. */
if (l4_proto == IPPROTO_UDP)
udp_hdr = (struct udp_hdr *)((char *)outer_l3_hdr + info->outer_l3_len);
/* do not recalculate udp cksum if it was 0 */
if (udp_hdr->dgram_cksum != 0) {
udp_hdr->dgram_cksum = 0;
if (info->outer_ethertype == _htons(ETHER_TYPE_IPv4))
udp_hdr->dgram_cksum =
rte_ipv4_udptcp_cksum(ipv4_hdr, udp_hdr);
else
udp_hdr->dgram_cksum =
rte_ipv6_udptcp_cksum(ipv6_hdr, udp_hdr);
}
} // nothing need to do for GRE tunneling packet now
}
> > if (testpmd_ol_flags &
> TESTPMD_TX_OFFLOAD_VXLAN_CKSUM)
> > ol_flags |= PKT_TX_OUTER_IP_CKSUM; diff --git
> > a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index
> > a554247..191a42c 100644
> > --- a/lib/librte_mbuf/rte_mbuf.h
> > +++ b/lib/librte_mbuf/rte_mbuf.h
> > @@ -141,24 +141,53 @@ extern "C" {
> > #define PKT_TX_UDP_CKSUM (3ULL << 52) /**< UDP cksum of TX pkt.
> > computed by NIC. */
> > #define PKT_TX_L4_MASK (3ULL << 52) /**< Mask for L4 cksum
> > offload request. */
> >
> > -#define PKT_TX_IP_CKSUM (1ULL << 54) /**< IP cksum of TX pkt.
> > computed by NIC. */
> > +/**
> > + * Offload the IP checksum in the hardware. The flag PKT_TX_IPV4
> > +should
> > + * also be set by the application, altough a PMD will only check
> > + * PKT_TX_IP_CKSUM.
> > + * - set the IP checksum field in the packet to 0
> > + * - fill the mbuf offload information: l2_len, l3_len */
> > +#define PKT_TX_IP_CKSUM (1ULL << 54)
> >
> > -/** Packet is IPv4 without requiring IP checksum offload. */
> > +/**
> > + * Packet is IPv4. This flag must be set when using any offload
> > +feature
> > + * (TSO, L3 or L4 checksum) to tell the NIC that the packet is an
> > +IPv4
> > + * packet.
> > + */
> > #define PKT_TX_IPV4 (1ULL << 55)
> >
> > -/** Tell the NIC it's an IPv6 packet.*/
> > +/**
> > + * Packet is IPv6. This flag must be set when using an offload
> > +feature
> > + * (TSO or L4 checksum) to tell the NIC that the packet is an IPv6
> > + * packet.
> > + */
> > #define PKT_TX_IPV6 (1ULL << 56)
> Above two macro for IPV4/IPV6 will be used for inner L3 for tunneling case,
> right?
> If yes, the annotations may need to mention that, to avoid confusing end users.
>
> Regards,
> Helin
>
> >
> > #define PKT_TX_VLAN_PKT (1ULL << 57) /**< TX packet is a 802.1q
> > VLAN packet. */
> >
> > -/** Outer IP checksum of TX packet, computed by NIC for tunneling packet.
> > - * The tunnel type must also be specified, ex:
> > PKT_TX_UDP_TUNNEL_PKT. */
> > +/**
> > + * Offload the IP checksum of an external header in the hardware. The
> > + * flag PKT_TX_OUTER_IPV4 should also be set by the application,
> > +altough
> > + * a PMD will only check PKT_TX_IP_CKSUM. The IP checksum field in
> > +the
> > + * packet must be set to 0.
> > + * - set the outer IP checksum field in the packet to 0
> > + * - fill the mbuf offload information: outer_l2_len, outer_l3_len
> > +*/
> > #define PKT_TX_OUTER_IP_CKSUM (1ULL << 58)
> >
> > -/** Packet is outer IPv4 without requiring IP checksum offload for
> > tunneling packet. */
> > +/**
> > + * Packet outer header is IPv4. This flag must be set when using any
> > + * outer offload feature (L3 or L4 checksum) to tell the NIC that the
> > + * packet is an IPv4 packet.
> > + */
> > #define PKT_TX_OUTER_IPV4 (1ULL << 59)
> >
> > -/** Tell the NIC it's an outer IPv6 packet for tunneling packet */
> > +/**
> > + * Packet outer header is IPv6. This flag must be set when using any
> > + * outer offload feature (L4 checksum) to tell the NIC that the
> > +packet
> > + * is an IPv6 packet.
> > + */
> > #define PKT_TX_OUTER_IPV6 (1ULL << 60)
> >
> > /* Use final bit of flags to indicate a control mbuf */
> > --
> > 2.1.4
next prev parent reply other threads:[~2015-02-11 7:19 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-21 23:36 [dpdk-dev] [RFC 00/16] enhance checksum offload API Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 01/16] mbuf: remove PKT_TX_IPV4_CSUM Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 02/16] mbuf: enhance the API documentation of offload flags Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 03/16] i40e: call i40e_txd_enable_checksum only for offloaded packets Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 04/16] i40e: remove the use of PKT_TX_UDP_TUNNEL_PKT flag Olivier Matz
2015-01-23 8:06 ` Liu, Jijiang
2015-01-23 8:47 ` Zhang, Helin
2015-01-23 9:06 ` Olivier MATZ
2015-01-21 23:36 ` [dpdk-dev] [RFC 05/16] mbuf: remove " Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 06/16] ethdev: add outer IP offload capability flag Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 07/16] i40e: advertise outer IPv4 checksum capability Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 08/16] testpmd: replace tx_checksum command by csum Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 09/16] testpmd: move csum_show in a function Olivier Matz
2015-01-23 11:03 ` Liu, Jijiang
2015-01-23 17:53 ` Olivier MATZ
2015-01-21 23:36 ` [dpdk-dev] [RFC 10/16] testpmd: add csum parse_tunnel command Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 11/16] testpmd: rename vxlan in outer_ip in csum commands Olivier Matz
2015-01-23 11:21 ` Liu, Jijiang
2015-01-23 17:49 ` Olivier MATZ
2015-01-21 23:36 ` [dpdk-dev] [RFC 12/16] testpmd: introduce parse_ipv* in csum fwd engine Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 13/16] testpmd: use a structure to store offload info " Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 14/16] testpmd: introduce parse_vxlan " Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 15/16] testpmd: support gre tunnels " Olivier Matz
2015-01-21 23:36 ` [dpdk-dev] [RFC 16/16] testpmd: support ipip tunnel in csum forward engine Olivier Matz
2015-01-21 23:41 ` [dpdk-dev] [RFC 00/16] enhance checksum offload API Olivier MATZ
2015-01-22 10:00 ` Thomas Monjalon
2015-01-22 1:01 ` Stephen Hemminger
2015-01-23 9:52 ` Olivier MATZ
2015-01-23 7:54 ` Liu, Jijiang
2015-01-30 13:15 ` [dpdk-dev] [PATCH 00/20] enhance tx " Olivier Matz
2015-01-30 13:15 ` [dpdk-dev] [PATCH 01/20] mbuf: remove PKT_TX_IPV4_CSUM Olivier Matz
2015-01-30 13:15 ` [dpdk-dev] [PATCH 02/20] mbuf: enhance the API documentation of offload flags Olivier Matz
2015-01-30 13:15 ` [dpdk-dev] [PATCH 03/20] i40e: call i40e_txd_enable_checksum only for offloaded packets Olivier Matz
2015-01-30 13:15 ` [dpdk-dev] [PATCH 04/20] i40e: remove the use of PKT_TX_UDP_TUNNEL_PKT flag Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 05/20] mbuf: remove " Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 06/20] testpmd: replace tx_checksum command by csum Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 07/20] testpmd: move csum_show in a function Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 08/20] testpmd: add csum parse_tunnel command Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 09/20] testpmd: rename vxlan in outer_ip in csum commands Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 10/20] testpmd: introduce parse_ipv* in csum fwd engine Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 11/20] testpmd: use a structure to store offload info " Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 12/20] testpmd: introduce parse_vxlan " Olivier Matz
2015-02-02 1:49 ` Liu, Jijiang
2015-01-30 13:16 ` [dpdk-dev] [PATCH 13/20] testpmd: support gre tunnels " Olivier Matz
2015-02-02 3:04 ` Liu, Jijiang
2015-01-30 13:16 ` [dpdk-dev] [PATCH 14/20] testpmd: support ipip tunnel in csum forward engine Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 15/20] ethdev: add outer IP offload capability flag Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 16/20] i40e: advertise outer IPv4 checksum capability Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 17/20] testpmd: add a warning if outer ip cksum requested but not supported Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 18/20] testpmd: fix TSO when using outer checksum offloads Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 19/20] i40e: fix offloading of outer checksum for ip in ip tunnels Olivier Matz
2015-01-30 13:16 ` [dpdk-dev] [PATCH 20/20] i40e: add debug logs for tx context descriptors Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 00/20] enhance tx checksum offload API Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 01/20] mbuf: remove PKT_TX_IPV4_CSUM Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 02/20] mbuf: enhance the API documentation of offload flags Olivier Matz
2015-02-10 5:38 ` Zhang, Helin
2015-02-10 16:54 ` Olivier MATZ
2015-02-11 7:15 ` Liu, Jijiang [this message]
2015-02-11 15:15 ` Olivier MATZ
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 03/20] i40e: call i40e_txd_enable_checksum only for offloaded packets Olivier Matz
2015-02-10 6:03 ` Zhang, Helin
2015-02-10 17:06 ` Olivier MATZ
2015-02-11 5:32 ` Zhang, Helin
2015-02-11 17:13 ` Olivier MATZ
2015-02-13 2:25 ` Zhang, Helin
2015-02-13 8:41 ` Olivier MATZ
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 04/20] i40e: remove the use of PKT_TX_UDP_TUNNEL_PKT flag Olivier Matz
2015-02-10 6:40 ` Zhang, Helin
2015-02-10 17:08 ` Olivier MATZ
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 05/20] mbuf: remove " Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 06/20] testpmd: replace tx_checksum command by csum Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 07/20] testpmd: move csum_show in a function Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 08/20] testpmd: add csum parse_tunnel command Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 09/20] testpmd: rename vxlan in outer_ip in csum commands Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 10/20] testpmd: introduce parse_ipv* in csum fwd engine Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 11/20] testpmd: use a structure to store offload info " Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 12/20] testpmd: introduce parse_vxlan " Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 13/20] testpmd: support gre tunnels " Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 14/20] testpmd: support ipip tunnel in csum forward engine Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 15/20] ethdev: add outer IP offload capability flag Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 16/20] i40e: advertise outer IPv4 checksum capability Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 17/20] testpmd: add a warning if outer ip cksum requested but not supported Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 18/20] testpmd: fix TSO when using outer checksum offloads Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 19/20] i40e: fix offloading of outer checksum for ip in ip tunnels Olivier Matz
2015-02-04 9:25 ` [dpdk-dev] [PATCH v2 20/20] i40e: add debug logs for tx context descriptors Olivier Matz
2015-02-09 1:10 ` [dpdk-dev] [PATCH v2 00/20] enhance tx checksum offload API Liu, Jijiang
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 " Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 01/20] mbuf: remove PKT_TX_IPV4_CSUM Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 02/20] mbuf: enhance the API documentation of offload flags Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 03/20] i40e: call i40e_txd_enable_checksum only for offloaded packets Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 04/20] i40e: remove the use of PKT_TX_UDP_TUNNEL_PKT flag Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 05/20] mbuf: remove " Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 06/20] testpmd: replace tx_checksum command by csum Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 07/20] testpmd: move csum_show in a function Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 08/20] testpmd: add csum parse_tunnel command Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 09/20] testpmd: rename vxlan in outer_ip in csum commands Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 10/20] testpmd: introduce parse_ipv* in csum fwd engine Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 11/20] testpmd: use a structure to store offload info " Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 12/20] testpmd: introduce parse_vxlan " Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 13/20] testpmd: support gre tunnels " Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 14/20] testpmd: support ipip tunnel in csum forward engine Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 15/20] ethdev: add outer IP offload capability flag Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 16/20] i40e: advertise outer IPv4 checksum capability Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 17/20] testpmd: add a warning if outer ip cksum requested but not supported Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 18/20] testpmd: fix TSO when using outer checksum offloads Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 19/20] i40e: fix offloading of outer checksum for ip in ip tunnels Olivier Matz
2015-02-13 9:22 ` [dpdk-dev] [PATCH v3 20/20] i40e: add debug logs for tx context descriptors Olivier Matz
2015-02-15 6:22 ` [dpdk-dev] [PATCH v3 00/20] enhance tx checksum offload API Liu, Jijiang
2015-02-16 18:23 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1ED644BD7E0A5F4091CF203DAFB8E4CC01DDA2CF@SHSMSX101.ccr.corp.intel.com \
--to=jijiang.liu@intel.com \
--cc=dev@dpdk.org \
--cc=olivier.matz@6wind.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).