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From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: "Wu, Jingjing" <jingjing.wu@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v4 16/21] ethdev: define structures for configuring flexible payload
Date: Wed, 29 Oct 2014 10:55:38 +0100
Message-ID: <5004228.PGr5ZRLVhe@xps13> (raw)
In-Reply-To: <9BB6961774997848B5B42BEC655768F8B24FC7@SHSMSX104.ccr.corp.intel.com>

2014-10-29 03:21, Wu, Jingjing:
> 
> > -----Original Message-----
> > From: Thomas Monjalon [mailto:thomas.monjalon@6wind.com]
> > Sent: Tuesday, October 28, 2014 10:15 PM
> > To: Wu, Jingjing
> > Cc: dev@dpdk.org
> > Subject: Re: [dpdk-dev] [PATCH v4 16/21] ethdev: define structures for
> > configuring flexible payload
> > 
> > 2014-10-22 09:01, Jingjing Wu:
> > > +/**
> > > + * A structure defined a field vector to specify each field.
> > > + */
> > > +struct rte_eth_field_vector {
> > > +	uint8_t offset;   /**< Source word offset */
> > > +	uint8_t size;     /**< Field Size defined in word units */
> > > +};
> > 
> > I'm sorry but I don't understand this patch at all.
> > I think the reason is that I need more information about flex filter.
> > 
> 
> Yes, it is a little difficult to understand the behavior. Let me explain it as I can.
> <1> flex words:
> We can select where the 8 flex words are. It can be constituted of 1-3 partitions.
> Each partition is defined as rte_eth_field_vector. 
> For example:
> if we set 
> rte_eth_flex_payload_cfg = {
> 	.type = RTE_ETH_L4_PAYLOAD;
> 	.nb_field = 1;
> 	.field = {
> 		{0, 8},  /*offset = 0, size =8*/
> 	};
> };
> This means the 8 words from the beginning of l4 payload will be consider as flex words.
> If we set 
> rte_eth_flex_payload_cfg = {
> 	.type = RTE_ETH_L4_PAYLOAD;
> 	.nb_field = 1;
> 	.field = {
> 		{0, 2},  /*offset = 0, size =2*/
> 		{4, 6},  /*offset = 4, size =6*/
> 	};
> };
> This means the 2 words from the beginning of l4 payload plus 6 words form the offset 4
> will be consider as flex words.
> 
> <2> flex mask:
> As the <1> configuration, we already select 8 words as flex words. Then the flex mask
> Will help us to define whether these word will participate in comparing. 
> The flex mask can be constituted of 2 partitions. One is word mask, another is bit mask.
> Word mask is defined in rte_eth_fdir_flex_masks.words_mask, it means bit i enables word i of flex words.
> rte_eth_fdir_flex_masks.field specify each word's bit mask, Fortville support 2 word bitmask.

OK thanks.
The most difficult task will be to explain it in the doxygen comment :)
Please try to be precise and concise in doxygen comments. It must be a
reference when using the API. If more examples are required, the developer
can look into the programmer's guide.

-- 
Thomas

  reply	other threads:[~2014-10-29  9:47 UTC|newest]

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-26  6:03 [dpdk-dev] [PATCH v3 00/20] Support flow director programming on Fortville Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 01/20] i40e: set up and initialize flow director Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 02/20] i40e: tear down " Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 03/20] i40e: initialize flexible payload setting Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 04/20] lib/librte_ether: new filter APIs definition Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 05/20] lib/librte_ether: define structures for adding/deleting flow director Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 06/20] i40e: implement operations to add/delete " Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 07/20] app/test-pmd: add test commands to add/delete flow director filter Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 08/20] i40e: match counter for flow director Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 09/20] i40e: report flow director match info to mbuf Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 10/20] lib/librte_ether: define structures for getting flow director information Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 11/20] i40e: implement operations to get fdir info Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 12/20] app/test-pmd: display fdir statistics Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 13/20] i40e: implement operation to flush flow director table Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 14/20] app/test-pmd: add test command " Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 15/20] lib/librte_ether: define structures for configuring flexible payload Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v316/20] i40e: implement operations to configure " Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 17/20] app/test-pmd: add test command " Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 18/20] lib/librte_ether: define structures for configuring flex masks Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 19/20] i40e: implement operations to configure flexible masks Jingjing Wu
2014-09-26  6:03 ` [dpdk-dev] [PATCH v3 20/20] app/test-pmd: add test command " Jingjing Wu
2014-10-13 15:58   ` De Lara Guarch, Pablo
2014-10-22  1:01 ` [dpdk-dev] [PATCH v4 00/21] Support flow director programming on Fortville Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 01/21] i40e: set up and initialize flow director Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 02/21] i40e: tear down " Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 03/21] i40e: initialize flexible payload setting Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 04/21] ethdev: define structures for adding/deleting flow director Jingjing Wu
2014-10-27 16:57     ` Thomas Monjalon
2014-10-28  1:18       ` Wu, Jingjing
2014-10-28 13:17         ` Thomas Monjalon
2014-10-29  1:29           ` Wu, Jingjing
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 05/21] i40e: implement operations to add/delete " Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 06/21] testpmd: add test commands to add/delete flow director filter Jingjing Wu
2014-10-28 13:23     ` Thomas Monjalon
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 07/21] i40e: match counter for flow director Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 08/21] mbuf: extend fdir field Jingjing Wu
2014-10-28 13:28     ` Thomas Monjalon
2014-10-29  1:45       ` Wu, Jingjing
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 09/21] i40e: report flow director match info to mbuf Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 10/21] testpmd: print extended fdir info in mbuf Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 11/21] ethdev: define structures for getting flow director information Jingjing Wu
2014-10-28 13:44     ` Thomas Monjalon
2014-10-29  2:10       ` Wu, Jingjing
2014-10-29  9:48         ` Thomas Monjalon
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 12/21] i40e: implement operations to get fdir info Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 13/21] testpmd: display fdir statistics Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 14/21] i40e: implement operation to flush flow director table Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 15/21] testpmd: add test command " Jingjing Wu
2014-10-28 13:53     ` Thomas Monjalon
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 16/21] ethdev: define structures for configuring flexible payload Jingjing Wu
2014-10-28 14:14     ` Thomas Monjalon
2014-10-29  3:21       ` Wu, Jingjing
2014-10-29  9:55         ` Thomas Monjalon [this message]
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 17/21] i40e: implement operations to configure " Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 18/21] testpmd: add test command " Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 19/21] ethdev: define structures for configuring flex masks Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 20/21] i40e: implement operations to configure flexible masks Jingjing Wu
2014-10-22  1:01   ` [dpdk-dev] [PATCH v4 21/21] testpmd: add test command " Jingjing Wu
2014-10-28 14:18     ` Thomas Monjalon
2014-10-29  2:35       ` Wu, Jingjing
2014-10-27 15:22   ` [dpdk-dev] [PATCH v4 00/21] Support flow director programming on Fortville Thomas Monjalon
2014-10-28  0:48   ` Zhang, Helin
2014-10-30  7:26   ` [dpdk-dev] [PATCH v5 " Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 01/21] i40e: set up and initialize flow director Jingjing Wu
2014-10-30  8:25       ` Wu, Jingjing
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 02/21] i40e: tear down " Jingjing Wu
2014-11-19  7:53       ` Cao, Min
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 03/21] i40e: initialize flexible payload setting Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 04/21] ethdev: define structures for adding/deleting flow director Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 05/21] i40e: implement operations to add/delete " Jingjing Wu
2014-11-05 21:18       ` De Lara Guarch, Pablo
2014-11-13  9:50         ` Thomas Monjalon
2014-11-13 11:36           ` Wu, Jingjing
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 06/21] testpmd: add test commands to add/delete flow director filter Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 07/21] i40e: match counter for flow director Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 08/21] mbuf: extend fdir field Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 09/21] i40e: report flow director match info to mbuf Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 10/21] testpmd: print extended fdir info in mbuf Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 11/21] ethdev: define structures for getting flow director information Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 12/21] i40e: implement operations to get fdir info Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 13/21] testpmd: display fdir statistics Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 14/21] i40e: implement operation to flush flow director table Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 15/21] testpmd: add test command " Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 16/21] ethdev: define structures for configuring flexible payload Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 17/21] i40e: implement operations to configure " Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 18/21] testpmd: add test command " Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 19/21] ethdev: define structures for configuring flex masks Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 20/21] i40e: implement operations to configure flexible masks Jingjing Wu
2014-10-30  7:26     ` [dpdk-dev] [PATCH v5 21/21] testpmd: add test command " Jingjing Wu
2014-10-30  8:07     ` [dpdk-dev] [PATCH v5 01/21] i40e: set up and initialize flow director Jingjing Wu
2014-11-21  0:46     ` [dpdk-dev] [PATCH v6 00/22] Support flow director programming on Fortville Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 01/22] i40e: set up and initialize flow director Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 02/22] i40e: tear down " Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 03/22] i40e: initialize flexible payload setting Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 04/22] ethdev: define structures for adding/deleting flow director Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 05/22] i40e: define functions for transition between flow_type and pctype Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 06/22] i40e: implement operations to add/delete flow director Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 07/22] testpmd: add test commands to add/delete flow director filter Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 08/22] i40e: match counter for flow director Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 09/22] mbuf: extend fdir field Jingjing Wu
2014-11-21 17:03         ` Chilikin, Andrey
2014-11-21 19:34           ` Ananyev, Konstantin
2014-11-21 19:37             ` Chilikin, Andrey
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 10/22] i40e: report flow director match info to mbuf Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 11/22] testpmd: print extended fdir info in mbuf Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 12/22] i40e: implement operation to flush flow director table Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 13/22] testpmd: add test command " Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 14/22] ethdev: define structures for getting flow director information Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 15/22] i40e: implement operations to get fdir info Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 16/22] ethdev: define structures for getting flow director statistics Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 17/22] i40e: implement operations to get fdir statistics Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 18/22] testpmd: display fdir info Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 19/22] ethdev: add flexible payload setting in eth_conf Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 20/22] i40e: take flow director flexible payload configuration Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 21/22] testpmd: add test command to configure flexible mask Jingjing Wu
2014-11-21  0:46       ` [dpdk-dev] [PATCH v6 22/22] testpmd: add test command to configure flexible payload Jingjing Wu
2014-11-21 11:34       ` [dpdk-dev] [PATCH v6 00/22] Support flow director programming on Fortville Ananyev, Konstantin
2014-11-24 23:20         ` Thomas Monjalon
2014-11-25  4:51           ` Wu, Jingjing
2014-11-25  9:23             ` Thomas Monjalon
2014-10-30  7:34   ` [dpdk-dev] [PATCH v4 00/21] " Cao, Min
2014-11-19  7:53   ` Cao, Min
2014-10-30  7:12 ` [dpdk-dev] [PATCH v3 00/20] " Cao, Min

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