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ethdev: add compare item Content-Language: en-US To: Suanming Mou , thomas@monjalon.net, Ori Kam , Aman Singh , Yuying Zhang , Andrew Rybchenko Cc: dev@dpdk.org References: <20231214031227.363911-1-suanmingm@nvidia.com> <20240206020626.545946-1-suanmingm@nvidia.com> <20240206020626.545946-4-suanmingm@nvidia.com> From: Ferruh Yigit Autocrypt: addr=ferruh.yigit@amd.com; keydata= xsFNBGJDD3EBEAC/M7Tk/DfQSmP1K96vyzdhfSBzlCaGtcxNXorq4fALruqVsD3oi0yfyEz9 4YN8x7py0o9EL8ZdpOX0skc0AMCDAaw033uWhCn0GLMeGRKUbfOAPvL6ecSDvGD7CJIO9j0J eZUvasBgPdM/435PEr9DmC6Ggzdzt8IuG4PoLi5jpFSfcqxZFCCxLUDEo/w0nuguk2FTuYJg B2zEZ4JTBZrw7hIHiFh8D8hr6YA6a5uTofq1tr+l048lbtdFUl8TR0aIExVzE4Z8qKZlcE+9 RQaewjK5Al1jLE4sHdmd3GN+IvgDF3D/fLsi25SKJDeGSdeHkOmaX0qGeM4WKIfU6iARRCiQ N3AmBIxZ/A7UXBKLaOyZ+/i3sE6Wb53nrO4i8+0K2Qwyh6LjTeiJAIjYKN43ppxz3DaI+QwQ vI+uyHr4Gg0Da9EPPz/YyKauSeOZCfCB5gIfICO0j6x0SCl8uQ2nLpjxcZkf0gjcwUzP3h+S 3x6NfDji9YEij0zczW/dcSpGgZ6vsFpPrtnP9ZXy6J53yp0kJtOJoOlkEFFdU2yCZnCDseum 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dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On 2/6/2024 2:06 AM, Suanming Mou wrote: > The new item type is added for the case user wants to match traffic > based on packet field compare result with other fields or immediate > value. > > e.g. take advantage the compare item user will be able to accumulate > a IPv4/TCP packet's TCP data_offset and IPv4 IHL field to a tag > register, then compare the tag register with IPv4 header total length > to understand the packet has payload or not. > > The supported operations can be as below: > - RTE_FLOW_ITEM_COMPARE_EQ (equal) > - RTE_FLOW_ITEM_COMPARE_NE (not equal) > - RTE_FLOW_ITEM_COMPARE_LT (less than) > - RTE_FLOW_ITEM_COMPARE_LE (less than or equal) > - RTE_FLOW_ITEM_COMPARE_GT (great than) > - RTE_FLOW_ITEM_COMPARE_GE (great than or equal) > > A sample for create the comparison flow: > flow pattern_template 0 create ingress pattern_template_id 1 template \ > compare op mask le a_type mask tag a_tag_index mask 1 b_type \ > mask tag b_tag_index mask 2 width mask 0xffffffff / end > flow actions_template 0 create ingress actions_template_id 1 template \ > count / drop / end mask count / drop / end > flow template_table 0 create table_id 1 group 2 priority 1 ingress \ > rules_number 1 pattern_template 1 actions_template 1 > flow queue 0 create 0 template_table 1 pattern_template 0 \ > actions_template 0 postpone no pattern compare op is le \ > a_type is tag a_tag_index is 1 b_type is tag b_tag_index is 2 \ > width is 32 / end actions count / drop / end > > Signed-off-by: Suanming Mou > Acked-by: Ori Kam > Acked-by: Andrew Rybchenko > Acked-by: Ferruh Yigit