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DIR:OUT; SFP:1101; SCL:1; SRVR:AM4PR05MB3282; H:AM4PR05MB3265.eurprd05.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 1Y7hkcsUhybhMwsd8FMQkmQrbNZCdag5t297N3zZLwF+Hn3NJ5azdEMTLk2FmXXsfDTrubnfAiBuhHLHVVN9Ss53+axJuixR+j9F5NoSb8FwHpmeVLfBlKHwR41G3P8J43Q3Dov3GBCAT+NZnFrSmmYlnlDJQjUWb17QxxsDzSB3RbUFGrhINvy/R6Avg9ShJw5SbhPzl2Tz3eALnssd97TMfR13XrbTLSV9o6f0Kd2hk2igj4GVDcr9z5DrWXMEdI74nhNFgh5V/KMYMXPM84AJyC9cZhGxrEVNPnu35laSrSLqeezXGwiEVCZAZIgaiOwmj2FZeyg8ut7mKj4R8JME3gA6vHbgKVZuHr47x2YwUbJAa28lf1ol/xM2NkQYPsEtFC+Jx21M7RURA4N3baVbWwhy1XdzhYTkCMBMz5U= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 49c4f043-f53a-4d19-a61b-08d6ff7ff1ba X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Jul 2019 06:30:29.9175 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: viacheslavo@mellanox.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR05MB3282 Subject: Re: [dpdk-dev] [PATCH v10 3/3] net/mlx5: update modify header using Direct Verbs X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > -----Original Message----- > From: Dekel Peled > Sent: Tuesday, July 2, 2019 17:44 > To: Adrien Mazarguil ; > wenzhuo.lu@intel.com; jingjing.wu@intel.com; > bernard.iremonger@intel.com; Yongseok Koh ; > Shahaf Shuler ; Slava Ovsiienko > ; arybchenko@solarflare.com > Cc: dev@dpdk.org; Ori Kam > Subject: [PATCH v10 3/3] net/mlx5: update modify header using Direct Verb= s >=20 > This patch implements additional actions of packet header > modifications. >=20 > Add actions: > - INC_TCP_SEQ - Increase sequence number in the outermost TCP header. > - DEC_TCP_SEQ - Decrease sequence number in the outermost TCP header. > - INC_TCP_ACK - Increase acknowledgment number in the outermost TCP > header. > - DEC_TCP_ACK - Decrease acknowledgment number in the outermost TCP > header. >=20 > Original work by Xiaoyu Min. >=20 > Signed-off-by: Dekel Peled Acked-by: Viacheslav Ovsiienko > --- > doc/guides/rel_notes/release_19_08.rst | 7 + > drivers/net/mlx5/mlx5_flow.h | 10 +- > drivers/net/mlx5/mlx5_flow_dv.c | 237 > +++++++++++++++++++++++++++++++++ > drivers/net/mlx5/mlx5_prm.h | 12 ++ > 4 files changed, 265 insertions(+), 1 deletion(-) >=20 > diff --git a/doc/guides/rel_notes/release_19_08.rst > b/doc/guides/rel_notes/release_19_08.rst > index 3da2667..450d22f 100644 > --- a/doc/guides/rel_notes/release_19_08.rst > +++ b/doc/guides/rel_notes/release_19_08.rst > @@ -74,6 +74,13 @@ New Features >=20 > * Enabled Tx outer/inner L3/L4 checksum offload. >=20 > +* **Updated Mellanox mlx5 driver.** > + > + Updated Mellanox mlx5 driver with new features and improvements, > including: > + > + * Updated the packet header modification feature. Added support of TCP > header > + sequence number and acknowledgment number modification. > + > * **Updated Solarflare network PMD.** >=20 > Updated the Solarflare ``sfc_efx`` driver with changes including: > diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h > index b665420..dc4a56a 100644 > --- a/drivers/net/mlx5/mlx5_flow.h > +++ b/drivers/net/mlx5/mlx5_flow.h > @@ -114,6 +114,10 @@ > #define MLX5_FLOW_ACTION_NVGRE_DECAP (1u << 25) > #define MLX5_FLOW_ACTION_RAW_ENCAP (1u << 26) > #define MLX5_FLOW_ACTION_RAW_DECAP (1u << 27) > +#define MLX5_FLOW_ACTION_INC_TCP_SEQ (1u << 28) > +#define MLX5_FLOW_ACTION_DEC_TCP_SEQ (1u << 29) > +#define MLX5_FLOW_ACTION_INC_TCP_ACK (1u << 30) > +#define MLX5_FLOW_ACTION_DEC_TCP_ACK (1u << 31) >=20 > #define MLX5_FLOW_FATE_ACTIONS \ > (MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | \ > @@ -140,7 +144,11 @@ > MLX5_FLOW_ACTION_SET_TTL | \ > MLX5_FLOW_ACTION_DEC_TTL | \ > MLX5_FLOW_ACTION_SET_MAC_SRC | \ > - MLX5_FLOW_ACTION_SET_MAC_DST) > + MLX5_FLOW_ACTION_SET_MAC_DST | \ > + MLX5_FLOW_ACTION_INC_TCP_SEQ | \ > + MLX5_FLOW_ACTION_DEC_TCP_SEQ | \ > + MLX5_FLOW_ACTION_INC_TCP_ACK | \ > + MLX5_FLOW_ACTION_DEC_TCP_ACK) >=20 > #ifndef IPPROTO_MPLS > #define IPPROTO_MPLS 137 > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c > b/drivers/net/mlx5/mlx5_flow_dv.c > index 933ad0b..8f64182 100644 > --- a/drivers/net/mlx5/mlx5_flow_dv.c > +++ b/drivers/net/mlx5/mlx5_flow_dv.c > @@ -136,6 +136,8 @@ struct field_modify_info modify_udp[] =3D { > struct field_modify_info modify_tcp[] =3D { > {2, 0, MLX5_MODI_OUT_TCP_SPORT}, > {2, 2, MLX5_MODI_OUT_TCP_DPORT}, > + {4, 4, MLX5_MODI_OUT_TCP_SEQ_NUM}, > + {4, 8, MLX5_MODI_OUT_TCP_ACK_NUM}, > {0, 0, 0}, > }; >=20 > @@ -561,6 +563,96 @@ struct field_modify_info modify_tcp[] =3D { > } >=20 > /** > + * Convert modify-header increment/decrement TCP Sequence number > + * to DV specification. > + * > + * @param[in,out] resource > + * Pointer to the modify-header resource. > + * @param[in] action > + * Pointer to action specification. > + * @param[out] error > + * Pointer to the error structure. > + * > + * @return > + * 0 on success, a negative errno value otherwise and rte_errno is set= . > + */ > +static int > +flow_dv_convert_action_modify_tcp_seq > + (struct mlx5_flow_dv_modify_hdr_resource > *resource, > + const struct rte_flow_action *action, > + struct rte_flow_error *error) > +{ > + const rte_be32_t *conf =3D (const rte_be32_t *)(action->conf); > + uint64_t value =3D rte_be_to_cpu_32(*conf); > + struct rte_flow_item item; > + struct rte_flow_item_tcp tcp; > + struct rte_flow_item_tcp tcp_mask; > + > + memset(&tcp, 0, sizeof(tcp)); > + memset(&tcp_mask, 0, sizeof(tcp_mask)); > + if (action->type =3D=3D RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ) > + /* > + * The HW has no decrement operation, only increment > operation. > + * To simulate decrement X from Y using increment operation > + * we need to add UINT32_MAX X times to Y. > + * Each adding of UINT32_MAX decrements Y by 1. > + */ > + value *=3D UINT32_MAX; > + tcp.hdr.sent_seq =3D rte_cpu_to_be_32((uint32_t)value); > + tcp_mask.hdr.sent_seq =3D RTE_BE32(UINT32_MAX); > + item.type =3D RTE_FLOW_ITEM_TYPE_TCP; > + item.spec =3D &tcp; > + item.mask =3D &tcp_mask; > + return flow_dv_convert_modify_action(&item, modify_tcp, > resource, > + > MLX5_MODIFICATION_TYPE_ADD, error); > +} > + > +/** > + * Convert modify-header increment/decrement TCP Acknowledgment > number > + * to DV specification. > + * > + * @param[in,out] resource > + * Pointer to the modify-header resource. > + * @param[in] action > + * Pointer to action specification. > + * @param[out] error > + * Pointer to the error structure. > + * > + * @return > + * 0 on success, a negative errno value otherwise and rte_errno is set= . > + */ > +static int > +flow_dv_convert_action_modify_tcp_ack > + (struct mlx5_flow_dv_modify_hdr_resource > *resource, > + const struct rte_flow_action *action, > + struct rte_flow_error *error) > +{ > + const rte_be32_t *conf =3D (const rte_be32_t *)(action->conf); > + uint64_t value =3D rte_be_to_cpu_32(*conf); > + struct rte_flow_item item; > + struct rte_flow_item_tcp tcp; > + struct rte_flow_item_tcp tcp_mask; > + > + memset(&tcp, 0, sizeof(tcp)); > + memset(&tcp_mask, 0, sizeof(tcp_mask)); > + if (action->type =3D=3D RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK) > + /* > + * The HW has no decrement operation, only increment > operation. > + * To simulate decrement X from Y using increment operation > + * we need to add UINT32_MAX X times to Y. > + * Each adding of UINT32_MAX decrements Y by 1. > + */ > + value *=3D UINT32_MAX; > + tcp.hdr.recv_ack =3D rte_cpu_to_be_32((uint32_t)value); > + tcp_mask.hdr.recv_ack =3D RTE_BE32(UINT32_MAX); > + item.type =3D RTE_FLOW_ITEM_TYPE_TCP; > + item.spec =3D &tcp; > + item.mask =3D &tcp_mask; > + return flow_dv_convert_modify_action(&item, modify_tcp, > resource, > + > MLX5_MODIFICATION_TYPE_ADD, error); > +} > + > +/** > * Validate META item. > * > * @param[in] dev > @@ -1668,6 +1760,96 @@ struct field_modify_info modify_tcp[] =3D { > } >=20 > /** > + * Validate the modify-header actions of increment/decrement > + * TCP Sequence-number. > + * > + * @param[in] action_flags > + * Holds the actions detected until now. > + * @param[in] action > + * Pointer to the modify action. > + * @param[in] item_flags > + * Holds the items detected. > + * @param[out] error > + * Pointer to error structure. > + * > + * @return > + * 0 on success, a negative errno value otherwise and rte_errno is set= . > + */ > +static int > +flow_dv_validate_action_modify_tcp_seq(const uint64_t action_flags, > + const struct rte_flow_action *action, > + const uint64_t item_flags, > + struct rte_flow_error *error) > +{ > + int ret =3D 0; > + > + ret =3D flow_dv_validate_action_modify_hdr(action_flags, action, > error); > + if (!ret) { > + if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)) > + return rte_flow_error_set(error, EINVAL, > + > RTE_FLOW_ERROR_TYPE_ACTION, > + NULL, "no TCP item in" > + " pattern"); > + if ((action->type =3D=3D RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ > && > + (action_flags & > MLX5_FLOW_ACTION_DEC_TCP_SEQ)) || > + (action->type =3D=3D RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ > && > + (action_flags & > MLX5_FLOW_ACTION_INC_TCP_SEQ))) > + return rte_flow_error_set(error, EINVAL, > + > RTE_FLOW_ERROR_TYPE_ACTION, > + NULL, > + "cannot decrease and > increase" > + " TCP sequence number" > + " at the same time"); > + } > + return ret; > +} > + > +/** > + * Validate the modify-header actions of increment/decrement > + * TCP Acknowledgment number. > + * > + * @param[in] action_flags > + * Holds the actions detected until now. > + * @param[in] action > + * Pointer to the modify action. > + * @param[in] item_flags > + * Holds the items detected. > + * @param[out] error > + * Pointer to error structure. > + * > + * @return > + * 0 on success, a negative errno value otherwise and rte_errno is set= . > + */ > +static int > +flow_dv_validate_action_modify_tcp_ack(const uint64_t action_flags, > + const struct rte_flow_action *action, > + const uint64_t item_flags, > + struct rte_flow_error *error) > +{ > + int ret =3D 0; > + > + ret =3D flow_dv_validate_action_modify_hdr(action_flags, action, > error); > + if (!ret) { > + if (!(item_flags & MLX5_FLOW_LAYER_OUTER_L4_TCP)) > + return rte_flow_error_set(error, EINVAL, > + > RTE_FLOW_ERROR_TYPE_ACTION, > + NULL, "no TCP item in" > + " pattern"); > + if ((action->type =3D=3D RTE_FLOW_ACTION_TYPE_INC_TCP_ACK > && > + (action_flags & > MLX5_FLOW_ACTION_DEC_TCP_ACK)) || > + (action->type =3D=3D RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK > && > + (action_flags & > MLX5_FLOW_ACTION_INC_TCP_ACK))) > + return rte_flow_error_set(error, EINVAL, > + > RTE_FLOW_ERROR_TYPE_ACTION, > + NULL, > + "cannot decrease and > increase" > + " TCP acknowledgment > number" > + " at the same time"); > + } > + return ret; > +} > + > +/** > * Validate the modify-header TTL actions. > * > * @param[in] action_flags > @@ -2416,6 +2598,40 @@ struct field_modify_info modify_tcp[] =3D { > ++actions_n; > action_flags |=3D MLX5_FLOW_ACTION_JUMP; > break; > + case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ: > + case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ: > + ret =3D flow_dv_validate_action_modify_tcp_seq > + > (action_flags, > + actions, > + item_flags, > + error); > + if (ret < 0) > + return ret; > + /* Count all modify-header actions as one action. */ > + if (!(action_flags & > MLX5_FLOW_MODIFY_HDR_ACTIONS)) > + ++actions_n; > + action_flags |=3D actions->type =3D=3D > + > RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ? > + > MLX5_FLOW_ACTION_INC_TCP_SEQ : > + > MLX5_FLOW_ACTION_DEC_TCP_SEQ; > + break; > + case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK: > + case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK: > + ret =3D flow_dv_validate_action_modify_tcp_ack > + > (action_flags, > + actions, > + item_flags, > + error); > + if (ret < 0) > + return ret; > + /* Count all modify-header actions as one action. */ > + if (!(action_flags & > MLX5_FLOW_MODIFY_HDR_ACTIONS)) > + ++actions_n; > + action_flags |=3D actions->type =3D=3D > + > RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ? > + > MLX5_FLOW_ACTION_INC_TCP_ACK : > + > MLX5_FLOW_ACTION_DEC_TCP_ACK; > + break; > default: > return rte_flow_error_set(error, ENOTSUP, >=20 > RTE_FLOW_ERROR_TYPE_ACTION, > @@ -3895,6 +4111,27 @@ struct field_modify_info modify_tcp[] =3D { > return -rte_errno; > action_flags |=3D MLX5_FLOW_ACTION_SET_TTL; > break; > + case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ: > + case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ: > + if (flow_dv_convert_action_modify_tcp_seq(&res, > actions, > + error)) > + return -rte_errno; > + action_flags |=3D actions->type =3D=3D > + > RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ? > + MLX5_FLOW_ACTION_INC_TCP_SEQ > : > + > MLX5_FLOW_ACTION_DEC_TCP_SEQ; > + break; > + > + case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK: > + case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK: > + if (flow_dv_convert_action_modify_tcp_ack(&res, > actions, > + error)) > + return -rte_errno; > + action_flags |=3D actions->type =3D=3D > + > RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ? > + MLX5_FLOW_ACTION_INC_TCP_ACK > : > + > MLX5_FLOW_ACTION_DEC_TCP_ACK; > + break; > case RTE_FLOW_ACTION_TYPE_END: > actions_end =3D true; > if (action_flags & > MLX5_FLOW_MODIFY_HDR_ACTIONS) { > diff --git a/drivers/net/mlx5/mlx5_prm.h b/drivers/net/mlx5/mlx5_prm.h > index 1a19958..7482383 100644 > --- a/drivers/net/mlx5/mlx5_prm.h > +++ b/drivers/net/mlx5/mlx5_prm.h > @@ -347,6 +347,18 @@ enum mlx5_modification_field { > MLX5_MODI_IN_IPV6_HOPLIMIT, > MLX5_MODI_META_DATA_REG_A, > MLX5_MODI_META_DATA_REG_B =3D 0x50, > + MLX5_MODI_META_REG_C_0, > + MLX5_MODI_META_REG_C_1, > + MLX5_MODI_META_REG_C_2, > + MLX5_MODI_META_REG_C_3, > + MLX5_MODI_META_REG_C_4, > + MLX5_MODI_META_REG_C_5, > + MLX5_MODI_META_REG_C_6, > + MLX5_MODI_META_REG_C_7, > + MLX5_MODI_OUT_TCP_SEQ_NUM, > + MLX5_MODI_IN_TCP_SEQ_NUM, > + MLX5_MODI_OUT_TCP_ACK_NUM, > + MLX5_MODI_IN_TCP_ACK_NUM =3D 0x5C, > }; >=20 > /* Modification sub command. */ > -- > 1.8.3.1