* [dpdk-dev] [PATCH] net/mlx5: set VLAN tag matcher bit properly @ 2020-02-09 12:25 Dekel Peled 2020-02-09 18:09 ` Slava Ovsiienko 2020-02-11 11:05 ` [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode Dekel Peled 0 siblings, 2 replies; 5+ messages in thread From: Dekel Peled @ 2020-02-09 12:25 UTC (permalink / raw) To: matan, viacheslavo, rasland; +Cc: dev Currently MLX5 PMD can't match on untagged packets specifically. Tagged traffic still hits the flows intended for untagged packets. If the flow has ETH, it will catch all matching packets, tagged and untagged. The solution is to use cvlan_tag bit. If mask=1 and value=0 it matches on untagged traffic. If mask=1 and value=1 it matches on tagged traffic. This is the kernel implementation. This patch updated MLX5 PMD to set cvlan_tag mask and value according to flow rule contents. Signed-off-by: Dekel Peled <dekelp@mellanox.com> --- drivers/net/mlx5/mlx5_flow_dv.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index 3daabd3..a28af7c 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -5214,6 +5214,15 @@ struct field_modify_info modify_tcp[] = { rte_be_to_cpu_16(eth_m->type)); l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, ethertype); *(uint16_t *)(l24_v) = eth_m->type & eth_v->type; + if (eth_v->type) { + /* When ethertype is present set mask for tagged VLAN. */ + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); + /* Set value for tagged VLAN if ethertype is 802.1Q. */ + if (eth_v->type == RTE_BE16(RTE_ETHER_TYPE_VLAN) || + eth_v->type == RTE_BE16(RTE_ETHER_TYPE_QINQ)) + MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, + 1); + } } /** @@ -5354,6 +5363,7 @@ struct field_modify_info modify_tcp[] = { ipv4_m->hdr.next_proto_id); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, ipv4_v->hdr.next_proto_id & ipv4_m->hdr.next_proto_id); + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); } /** @@ -5458,6 +5468,7 @@ struct field_modify_info modify_tcp[] = { ipv6_m->hdr.proto); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, ipv6_v->hdr.proto & ipv6_m->hdr.proto); + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); } /** -- 1.8.3.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] [PATCH] net/mlx5: set VLAN tag matcher bit properly 2020-02-09 12:25 [dpdk-dev] [PATCH] net/mlx5: set VLAN tag matcher bit properly Dekel Peled @ 2020-02-09 18:09 ` Slava Ovsiienko 2020-02-11 11:05 ` [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode Dekel Peled 1 sibling, 0 replies; 5+ messages in thread From: Slava Ovsiienko @ 2020-02-09 18:09 UTC (permalink / raw) To: Dekel Peled, Matan Azrad, Raslan Darawsheh; +Cc: dev > -----Original Message----- > From: Dekel Peled <dekelp@mellanox.com> > Sent: Sunday, February 9, 2020 14:26 > To: Matan Azrad <matan@mellanox.com>; Slava Ovsiienko > <viacheslavo@mellanox.com>; Raslan Darawsheh <rasland@mellanox.com> > Cc: dev@dpdk.org > Subject: [PATCH] net/mlx5: set VLAN tag matcher bit properly > > Currently MLX5 PMD can't match on untagged packets specifically. > Tagged traffic still hits the flows intended for untagged packets. > If the flow has ETH, it will catch all matching packets, tagged and untagged. > The solution is to use cvlan_tag bit. > If mask=1 and value=0 it matches on untagged traffic. > If mask=1 and value=1 it matches on tagged traffic. > This is the kernel implementation. > > This patch updated MLX5 PMD to set cvlan_tag mask and value according to > flow rule contents. > > Signed-off-by: Dekel Peled <dekelp@mellanox.com> Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com> > --- > drivers/net/mlx5/mlx5_flow_dv.c | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c > b/drivers/net/mlx5/mlx5_flow_dv.c index 3daabd3..a28af7c 100644 > --- a/drivers/net/mlx5/mlx5_flow_dv.c > +++ b/drivers/net/mlx5/mlx5_flow_dv.c > @@ -5214,6 +5214,15 @@ struct field_modify_info modify_tcp[] = { > rte_be_to_cpu_16(eth_m->type)); > l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, > ethertype); > *(uint16_t *)(l24_v) = eth_m->type & eth_v->type; > + if (eth_v->type) { > + /* When ethertype is present set mask for tagged VLAN. */ > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); > + /* Set value for tagged VLAN if ethertype is 802.1Q. */ > + if (eth_v->type == RTE_BE16(RTE_ETHER_TYPE_VLAN) || > + eth_v->type == RTE_BE16(RTE_ETHER_TYPE_QINQ)) > + MLX5_SET(fte_match_set_lyr_2_4, headers_v, > cvlan_tag, > + 1); > + } > } > > /** > @@ -5354,6 +5363,7 @@ struct field_modify_info modify_tcp[] = { > ipv4_m->hdr.next_proto_id); > MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, > ipv4_v->hdr.next_proto_id & ipv4_m->hdr.next_proto_id); > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); > } > > /** > @@ -5458,6 +5468,7 @@ struct field_modify_info modify_tcp[] = { > ipv6_m->hdr.proto); > MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, > ipv6_v->hdr.proto & ipv6_m->hdr.proto); > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); > } > > /** > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode 2020-02-09 12:25 [dpdk-dev] [PATCH] net/mlx5: set VLAN tag matcher bit properly Dekel Peled 2020-02-09 18:09 ` Slava Ovsiienko @ 2020-02-11 11:05 ` Dekel Peled 2020-02-12 13:09 ` Matan Azrad 2020-02-12 14:10 ` Raslan Darawsheh 1 sibling, 2 replies; 5+ messages in thread From: Dekel Peled @ 2020-02-11 11:05 UTC (permalink / raw) To: matan, viacheslavo, rasland; +Cc: dev, stable Currently MLX5 PMD can't match on untagged packets specifically. Tagged traffic still hits the flows intended for untagged packets. If the flow has ETH, it will catch all matching packets, tagged and untagged. The solution is to use cvlan_tag bit. If mask=1 and value=0 it matches on untagged traffic. If mask=1 and value=1 it matches on tagged traffic. This is the kernel implementation. This patch updated MLX5 PMD to set cvlan_tag mask and value according to flow rule contents. This update is relevant when using DV flow engine (dv_flow_en=1). See example at https://doc.dpdk.org/guides/nics/mlx5.html#limitations. Fixes: fc2c498ccb94 ("net/mlx5: add Direct Verbs translate items") Cc: stable@dpdk.org Signed-off-by: Dekel Peled <dekelp@mellanox.com> v2: Update PMD documentation and release notes, update commit message. --- doc/guides/nics/mlx5.rst | 9 +++------ doc/guides/rel_notes/release_20_02.rst | 1 + drivers/net/mlx5/mlx5_flow_dv.c | 11 +++++++++++ 3 files changed, 15 insertions(+), 6 deletions(-) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 2411fb3..2ea4fa9 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -110,21 +110,18 @@ Limitations process. If the external memory is registered by primary process but has different virtual address in secondary process, unexpected error may happen. -- Flow pattern without any specific vlan will match for vlan packets as well: +- When using Verbs flow engine (``dv_flow_en`` = 0), flow pattern without any + specific VLAN will match for VLAN packets as well: When VLAN spec is not specified in the pattern, the matching rule will be created with VLAN as a wild card. Meaning, the flow rule:: flow create 0 ingress pattern eth / vlan vid is 3 / ipv4 / end ... - Will only match vlan packets with vid=3. and the flow rules:: + Will only match vlan packets with vid=3. and the flow rule:: flow create 0 ingress pattern eth / ipv4 / end ... - Or:: - - flow create 0 ingress pattern eth / vlan / ipv4 / end ... - Will match any ipv4 packet (VLAN included). - VLAN pop offload command: diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst index 786f9b1..2ffccf2 100644 --- a/doc/guides/rel_notes/release_20_02.rst +++ b/doc/guides/rel_notes/release_20_02.rst @@ -112,6 +112,7 @@ New Features * Added support for RSS using L3/L4 source/destination only. * Added support for matching on GTP tunnel header item. + * Removed limitation of matching on tagged/untagged packets (when using DV flow engine). * **Add new vDPA PMD based on Mellanox devices** diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index e71b3b5..bc067a2 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -5216,6 +5216,15 @@ struct field_modify_info modify_tcp[] = { rte_be_to_cpu_16(eth_m->type)); l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, ethertype); *(uint16_t *)(l24_v) = eth_m->type & eth_v->type; + if (eth_v->type) { + /* When ethertype is present set mask for tagged VLAN. */ + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); + /* Set value for tagged VLAN if ethertype is 802.1Q. */ + if (eth_v->type == RTE_BE16(RTE_ETHER_TYPE_VLAN) || + eth_v->type == RTE_BE16(RTE_ETHER_TYPE_QINQ)) + MLX5_SET(fte_match_set_lyr_2_4, headers_v, cvlan_tag, + 1); + } } /** @@ -5356,6 +5365,7 @@ struct field_modify_info modify_tcp[] = { ipv4_m->hdr.next_proto_id); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, ipv4_v->hdr.next_proto_id & ipv4_m->hdr.next_proto_id); + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); } /** @@ -5460,6 +5470,7 @@ struct field_modify_info modify_tcp[] = { ipv6_m->hdr.proto); MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, ipv6_v->hdr.proto & ipv6_m->hdr.proto); + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); } /** -- 1.8.3.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode 2020-02-11 11:05 ` [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode Dekel Peled @ 2020-02-12 13:09 ` Matan Azrad 2020-02-12 14:10 ` Raslan Darawsheh 1 sibling, 0 replies; 5+ messages in thread From: Matan Azrad @ 2020-02-12 13:09 UTC (permalink / raw) To: Dekel Peled, Slava Ovsiienko, Raslan Darawsheh; +Cc: dev, stable From: Dekel Peled > Currently MLX5 PMD can't match on untagged packets specifically. > Tagged traffic still hits the flows intended for untagged packets. > If the flow has ETH, it will catch all matching packets, tagged and untagged. > The solution is to use cvlan_tag bit. > If mask=1 and value=0 it matches on untagged traffic. > If mask=1 and value=1 it matches on tagged traffic. > This is the kernel implementation. > > This patch updated MLX5 PMD to set cvlan_tag mask and value according to > flow rule contents. > This update is relevant when using DV flow engine (dv_flow_en=1). > > See example at > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.d > pdk.org%2Fguides%2Fnics%2Fmlx5.html%23limitations&data=02%7C01 > %7Cmatan%40mellanox.com%7C4fdccf29506c4fd32ce708d7aee24ebe%7Ca6 > 52971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C637170159317867655& > ;sdata=PVklEAti0Im%2FAXWuzDlizjxkVAyjCZSwF3vcYQ1x7fw%3D&reser > ved=0. > > Fixes: fc2c498ccb94 ("net/mlx5: add Direct Verbs translate items") > Cc: stable@dpdk.org > > Signed-off-by: Dekel Peled <dekelp@mellanox.com> Acked-by: Matan Azrad <matan@mellanox.com> ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode 2020-02-11 11:05 ` [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode Dekel Peled 2020-02-12 13:09 ` Matan Azrad @ 2020-02-12 14:10 ` Raslan Darawsheh 1 sibling, 0 replies; 5+ messages in thread From: Raslan Darawsheh @ 2020-02-12 14:10 UTC (permalink / raw) To: Dekel Peled, Matan Azrad, Slava Ovsiienko; +Cc: dev, stable Hi, > -----Original Message----- > From: Dekel Peled <dekelp@mellanox.com> > Sent: Tuesday, February 11, 2020 1:05 PM > To: Matan Azrad <matan@mellanox.com>; Slava Ovsiienko > <viacheslavo@mellanox.com>; Raslan Darawsheh <rasland@mellanox.com> > Cc: dev@dpdk.org; stable@dpdk.org > Subject: [PATCH v2] net/mlx5: fix VLAN item match for DV mode > > Currently MLX5 PMD can't match on untagged packets specifically. > Tagged traffic still hits the flows intended for untagged packets. > If the flow has ETH, it will catch all matching packets, tagged > and untagged. > The solution is to use cvlan_tag bit. > If mask=1 and value=0 it matches on untagged traffic. > If mask=1 and value=1 it matches on tagged traffic. > This is the kernel implementation. > > This patch updated MLX5 PMD to set cvlan_tag mask and value according > to flow rule contents. > This update is relevant when using DV flow engine (dv_flow_en=1). > > See example at > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.d > pdk.org%2Fguides%2Fnics%2Fmlx5.html%23limitations&data=02%7C01 > %7Crasland%40mellanox.com%7Ca0e3ceda39d24d8e045808d7aee24dcd%7C > a652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C637170159302953553&a > mp;sdata=EtKSvNXJ7qiz10fi%2FQYGzEv0fbLH3VvhpYBGZsu9yZ0%3D&re > served=0. > > Fixes: fc2c498ccb94 ("net/mlx5: add Direct Verbs translate items") > Cc: stable@dpdk.org > > Signed-off-by: Dekel Peled <dekelp@mellanox.com> > > v2: Update PMD documentation and release notes, update commit message. > > --- > doc/guides/nics/mlx5.rst | 9 +++------ > doc/guides/rel_notes/release_20_02.rst | 1 + > drivers/net/mlx5/mlx5_flow_dv.c | 11 +++++++++++ > 3 files changed, 15 insertions(+), 6 deletions(-) > > diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst > index 2411fb3..2ea4fa9 100644 > --- a/doc/guides/nics/mlx5.rst > +++ b/doc/guides/nics/mlx5.rst > @@ -110,21 +110,18 @@ Limitations > process. If the external memory is registered by primary process but has > different virtual address in secondary process, unexpected error may > happen. > > -- Flow pattern without any specific vlan will match for vlan packets as well: > +- When using Verbs flow engine (``dv_flow_en`` = 0), flow pattern without > any > + specific VLAN will match for VLAN packets as well: > > When VLAN spec is not specified in the pattern, the matching rule will be > created with VLAN as a wild card. > Meaning, the flow rule:: > > flow create 0 ingress pattern eth / vlan vid is 3 / ipv4 / end ... > > - Will only match vlan packets with vid=3. and the flow rules:: > + Will only match vlan packets with vid=3. and the flow rule:: > > flow create 0 ingress pattern eth / ipv4 / end ... > > - Or:: > - > - flow create 0 ingress pattern eth / vlan / ipv4 / end ... > - > Will match any ipv4 packet (VLAN included). > > - VLAN pop offload command: > diff --git a/doc/guides/rel_notes/release_20_02.rst > b/doc/guides/rel_notes/release_20_02.rst > index 786f9b1..2ffccf2 100644 > --- a/doc/guides/rel_notes/release_20_02.rst > +++ b/doc/guides/rel_notes/release_20_02.rst > @@ -112,6 +112,7 @@ New Features > > * Added support for RSS using L3/L4 source/destination only. > * Added support for matching on GTP tunnel header item. > + * Removed limitation of matching on tagged/untagged packets (when > using DV flow engine). > > * **Add new vDPA PMD based on Mellanox devices** > > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c > b/drivers/net/mlx5/mlx5_flow_dv.c > index e71b3b5..bc067a2 100644 > --- a/drivers/net/mlx5/mlx5_flow_dv.c > +++ b/drivers/net/mlx5/mlx5_flow_dv.c > @@ -5216,6 +5216,15 @@ struct field_modify_info modify_tcp[] = { > rte_be_to_cpu_16(eth_m->type)); > l24_v = MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v, > ethertype); > *(uint16_t *)(l24_v) = eth_m->type & eth_v->type; > + if (eth_v->type) { > + /* When ethertype is present set mask for tagged VLAN. */ > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, > 1); > + /* Set value for tagged VLAN if ethertype is 802.1Q. */ > + if (eth_v->type == RTE_BE16(RTE_ETHER_TYPE_VLAN) || > + eth_v->type == RTE_BE16(RTE_ETHER_TYPE_QINQ)) > + MLX5_SET(fte_match_set_lyr_2_4, headers_v, > cvlan_tag, > + 1); > + } > } > > /** > @@ -5356,6 +5365,7 @@ struct field_modify_info modify_tcp[] = { > ipv4_m->hdr.next_proto_id); > MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, > ipv4_v->hdr.next_proto_id & ipv4_m->hdr.next_proto_id); > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); > } > > /** > @@ -5460,6 +5470,7 @@ struct field_modify_info modify_tcp[] = { > ipv6_m->hdr.proto); > MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol, > ipv6_v->hdr.proto & ipv6_m->hdr.proto); > + MLX5_SET(fte_match_set_lyr_2_4, headers_m, cvlan_tag, 1); > } > > /** > -- > 1.8.3.1 Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-02-12 14:10 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-02-09 12:25 [dpdk-dev] [PATCH] net/mlx5: set VLAN tag matcher bit properly Dekel Peled 2020-02-09 18:09 ` Slava Ovsiienko 2020-02-11 11:05 ` [dpdk-dev] [PATCH v2] net/mlx5: fix VLAN item match for DV mode Dekel Peled 2020-02-12 13:09 ` Matan Azrad 2020-02-12 14:10 ` Raslan Darawsheh
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