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From: "Wang, YuanX" <yuanx.wang@intel.com>
To: Suanming Mou <suanmingm@nvidia.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	"NBU-Contact-Thomas Monjalon (EXTERNAL)" <thomas@monjalon.net>,
	Ferruh Yigit <ferruh.yigit@xilinx.com>,
	Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Cc: "mdr@ashroe.eu" <mdr@ashroe.eu>,
	"Li, Xiaoyun" <xiaoyun.li@intel.com>,
	"Singh, Aman Deep" <aman.deep.singh@intel.com>,
	"Zhang, Yuying" <yuying.zhang@intel.com>,
	"Zhang, Qi Z" <qi.z.zhang@intel.com>,
	"Yang, Qiming" <qiming.yang@intel.com>,
	"jerinjacobk@gmail.com" <jerinjacobk@gmail.com>,
	Slava Ovsiienko <viacheslavo@nvidia.com>,
	"stephen@networkplumber.org" <stephen@networkplumber.org>,
	"Ding, Xuan" <xuan.ding@intel.com>,
	"hpothula@marvell.com" <hpothula@marvell.com>,
	"Tang, Yaqi" <yaqi.tang@intel.com>,
	Wenxuan Wu <wenxuanx.wu@intel.com>
Subject: RE: [PATCH v3 2/4] ethdev: introduce protocol hdr based buffer split
Date: Fri, 16 Sep 2022 08:39:35 +0000	[thread overview]
Message-ID: <PH7PR11MB695310592E89144D59DCCF4F85489@PH7PR11MB6953.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CO6PR12MB5396C4105194BF5A0F0798EBC1479@CO6PR12MB5396.namprd12.prod.outlook.com>

Hi 

> -----Original Message-----
> From: Suanming Mou <suanmingm@nvidia.com>
> Sent: Tuesday, September 13, 2022 3:57 PM
> To: Wang, YuanX <yuanx.wang@intel.com>; dev@dpdk.org; NBU-Contact-
> Thomas Monjalon (EXTERNAL) <thomas@monjalon.net>; Ferruh Yigit
> <ferruh.yigit@xilinx.com>; Andrew Rybchenko
> <andrew.rybchenko@oktetlabs.ru>
> Cc: mdr@ashroe.eu; Li, Xiaoyun <xiaoyun.li@intel.com>; Singh, Aman Deep
> <aman.deep.singh@intel.com>; Zhang, Yuying <yuying.zhang@intel.com>;
> Zhang, Qi Z <qi.z.zhang@intel.com>; Yang, Qiming <qiming.yang@intel.com>;
> jerinjacobk@gmail.com; Slava Ovsiienko <viacheslavo@nvidia.com>;
> stephen@networkplumber.org; Ding, Xuan <xuan.ding@intel.com>;
> hpothula@marvell.com; Tang, Yaqi <yaqi.tang@intel.com>; Wenxuan Wu
> <wenxuanx.wu@intel.com>
> Subject: RE: [PATCH v3 2/4] ethdev: introduce protocol hdr based buffer split
> 
> Hi
> 
> > -----Original Message-----
> > From: Yuan Wang <yuanx.wang@intel.com>
> > Sent: Saturday, September 3, 2022 3:10 AM
> > To: dev@dpdk.org; NBU-Contact-Thomas Monjalon (EXTERNAL)
> > <thomas@monjalon.net>; Ferruh Yigit <ferruh.yigit@xilinx.com>; Andrew
> > Rybchenko <andrew.rybchenko@oktetlabs.ru>
> > Cc: mdr@ashroe.eu; xiaoyun.li@intel.com; aman.deep.singh@intel.com;
> > yuying.zhang@intel.com; qi.z.zhang@intel.com; qiming.yang@intel.com;
> > jerinjacobk@gmail.com; Slava Ovsiienko <viacheslavo@nvidia.com>;
> > stephen@networkplumber.org; xuan.ding@intel.com;
> hpothula@marvell.com;
> > yaqi.tang@intel.com; Yuan Wang <yuanx.wang@intel.com>; Wenxuan Wu
> > <wenxuanx.wu@intel.com>
> > Subject: [PATCH v3 2/4] ethdev: introduce protocol hdr based buffer
> > split
> >
> 
> snip
> 
> > @@ -1693,13 +1695,44 @@ rte_eth_rx_queue_check_split(const struct
> > rte_eth_rxseg_split *rx_seg,
> >  		}
> >  		offset += seg_idx != 0 ? 0 : RTE_PKTMBUF_HEADROOM;
> >  		*mbp_buf_size = rte_pktmbuf_data_room_size(mpl);
> > -		length = length != 0 ? length : *mbp_buf_size;
> > -		if (*mbp_buf_size < length + offset) {
> > -			RTE_ETHDEV_LOG(ERR,
> > -				       "%s mbuf_data_room_size %u < %u
> > (segment length=%u + segment offset=%u)\n",
> > -				       mpl->name, *mbp_buf_size,
> > -				       length + offset, length, offset);
> > -			return -EINVAL;
> > +
> > +		int ret =
> > rte_eth_buffer_split_get_supported_hdr_ptypes(port_id, NULL, 0);
> 
> One small question, since the  ptypes == NULL and num == 0, I assume ret
> will always be <=0, right?

The usage of rte_eth_buffer_split_get_supported_hdr_ptypes is the same as rte_eth_dev_get_supported_ptypes.
 In this scenario, the function returns the total number of supported ptypes, or an error code less than 0.

> 
> > +		if (ret <= 0) {
> > +			/* Split at fixed length. */
> > +			length = length != 0 ? length : *mbp_buf_size;
> > +			if (*mbp_buf_size < length + offset) {
> > +				RTE_ETHDEV_LOG(ERR,
> > +					"%s mbuf_data_room_size %u < %u
> > (segment length=%u + segment offset=%u)\n",
> > +					mpl->name, *mbp_buf_size,
> > +					length + offset, length, offset);
> > +				return -EINVAL;
> > +			}
> > +		} else {
> > +			/* Split after specified protocol header. */
> > +			uint32_t ptypes[ret];
> > +			int i;
> > +
> > +			ret =
> > rte_eth_buffer_split_get_supported_hdr_ptypes(port_id, ptypes, ret);
> > +			for (i = 0; i < ret; i++)
> > +				if (ptypes[i] & proto_hdr)
> > +					break;
> > +
> 
> snip

  reply	other threads:[~2022-09-16  8:39 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-12 18:15 [PATCH 0/4] support protocol " Yuan Wang
2022-08-12 18:15 ` [PATCH 1/4] ethdev: introduce protocol header API Yuan Wang
2022-08-12 18:15 ` [PATCH 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-08-12 18:15 ` [PATCH 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-08-12 18:15 ` [PATCH 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-01 22:33 ` [PATCH v2 0/4] support protocol based buffer split Yuan Wang
2022-09-01 22:34 ` [PATCH v2 1/4] ethdev: introduce protocol header API Yuan Wang
2022-09-01 22:35 ` [PATCH v2 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-09-01 22:36 ` [PATCH v2 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-09-01 22:37 ` [PATCH v2 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-02 19:10 ` [PATCH v3 0/4] support protocol based buffer split Yuan Wang
2022-09-02 19:10   ` [PATCH v3 1/4] ethdev: introduce protocol header API Yuan Wang
2022-09-12 11:24     ` Andrew Rybchenko
2022-09-16  8:34       ` Wang, YuanX
2022-09-02 19:10   ` [PATCH v3 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-09-12 11:47     ` Andrew Rybchenko
2022-09-16  8:38       ` Wang, YuanX
2022-09-20  5:35         ` Andrew Rybchenko
2022-09-22  3:13           ` Wang, YuanX
2022-09-13  7:56     ` Suanming Mou
2022-09-16  8:39       ` Wang, YuanX [this message]
2022-09-02 19:10   ` [PATCH v3 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-09-02 19:10   ` [PATCH v3 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-20 11:12 ` [PATCH v4 0/4] support protocol based buffer split Yuan Wang
2022-09-20 11:12   ` [PATCH v4 1/4] ethdev: introduce protocol header API Yuan Wang
2022-09-20 11:12   ` [PATCH v4 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-09-20 11:12   ` [PATCH v4 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-09-20 11:12   ` [PATCH v4 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-26  9:40 ` [PATCH v5 0/4] support protocol based buffer split Yuan Wang
2022-09-26  9:40   ` [PATCH v5 1/4] ethdev: introduce protocol header API Yuan Wang
2022-09-26  9:40   ` [PATCH v5 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-09-28 15:42     ` Wang, YuanX
2022-09-26  9:40   ` [PATCH v5 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-09-26  9:40   ` [PATCH v5 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-29 18:59 ` [PATCH v6 0/4] support protocol based buffer split Yuan Wang
2022-09-29 18:59   ` [PATCH v6 1/4] ethdev: introduce protocol header API Yuan Wang
2022-09-29 18:59   ` [PATCH v6 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-09-29 18:59   ` [PATCH v6 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-09-29 18:59   ` [PATCH v6 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-09-30  6:45     ` Tang, Yaqi
2022-10-01 21:05 ` [PATCH v7 0/4] support protocol based buffer split Yuan Wang
2022-10-01 21:05   ` [PATCH v7 1/4] ethdev: introduce protocol header API Yuan Wang
2022-10-03  7:04     ` Andrew Rybchenko
2022-10-04  2:21       ` Wang, YuanX
2022-10-04  7:52         ` Andrew Rybchenko
2022-10-04 15:00           ` Wang, YuanX
2022-10-01 21:05   ` [PATCH v7 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-10-02  4:01     ` Wang, YuanX
2022-10-03  7:47     ` Andrew Rybchenko
2022-10-04  2:48       ` Wang, YuanX
2022-10-04  8:22         ` Andrew Rybchenko
2022-10-04 15:01           ` Wang, YuanX
2022-10-01 21:05   ` [PATCH v7 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-10-01 21:05   ` [PATCH v7 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-10-05 23:18 ` [PATCH v8 0/4] support protocol based buffer split Yuan Wang
2022-10-05 23:18   ` [PATCH v8 1/4] ethdev: introduce protocol header API Yuan Wang
2022-10-06 10:11     ` Andrew Rybchenko
2022-10-05 23:18   ` [PATCH v8 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-10-06 10:11     ` Andrew Rybchenko
2022-10-08 14:30       ` Ding, Xuan
2022-10-05 23:18   ` [PATCH v8 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-10-06 10:12     ` Andrew Rybchenko
2022-10-05 23:18   ` [PATCH v8 4/4] net/ice: support buffer split in Rx path Yuan Wang
2022-10-06 10:12     ` Andrew Rybchenko
2022-10-06 10:13   ` [PATCH v8 0/4] support protocol based buffer split Andrew Rybchenko
2022-10-09 20:25 ` [PATCH v9 " Yuan Wang
2022-10-09 14:58   ` Andrew Rybchenko
2022-10-10  2:45     ` Ding, Xuan
2022-10-09 20:25   ` [PATCH v9 1/4] ethdev: introduce protocol header API Yuan Wang
2022-10-09 20:25   ` [PATCH v9 2/4] ethdev: introduce protocol hdr based buffer split Yuan Wang
2022-10-09 20:25   ` [PATCH v9 3/4] app/testpmd: add rxhdrs commands and parameters Yuan Wang
2022-10-09 20:25   ` [PATCH v9 4/4] net/ice: support buffer split in Rx path Yuan Wang

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