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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5312.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 23a214cc-3b9e-4eb6-c604-08d9aec1a90f X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Nov 2021 20:41:43.6626 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: W2dLm0PddaGxjvA247BBAnMOX3VQFOHf4BTLFEF06P5TY4Nprj7FwJ1p/CWZZCJC2VJiGwu+OMdZfFKl/UHIEQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB5359 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Hi, > -----Original Message----- > From: Michael Baum > Sent: Tuesday, November 23, 2021 8:38 PM > To: dev@dpdk.org > Cc: Matan Azrad ; Raslan Darawsheh > ; Slava Ovsiienko ; Michael > Baum ; stable@dpdk.org > Subject: [PATCH 3/3] net/mlx5: fix missing adjustment MPRQ stride devargs >=20 > From: Michael Baum >=20 > In Multy-Packet RQ creation, the user can choose the number of strides an= d > their size in bytes. The user updates it using specific devargs for both = of > these parameters. > The above two parameters determine the size of the WQE which is actually > their product of multiplication. >=20 > If the user selects values that are not in the supported range, the PMD > changes them to default values. However, apart from the range limitations > for each parameter individually there is also a minimum value on their > multiplication. When the user selects values that their multiplication ar= e > lower than minimum value, no adjustment is made and the creation of the > WQE fails. >=20 > This patch adds an adjustment in these cases as well. When the user selec= ts > values whose multiplication is lower than the minimum, they are replaced > with the default values. >=20 > Fixes: ecb160456aed ("net/mlx5: add device parameter for MPRQ stride > size") > Cc: stable@dpdk.org >=20 > Signed-off-by: Michael Baum > Acked-by: Matan Azrad > --- > drivers/net/mlx5/linux/mlx5_os.c | 56 +++------ > drivers/net/mlx5/mlx5.h | 4 + > drivers/net/mlx5/mlx5_rxq.c | 209 +++++++++++++++++++++---------- > 3 files changed, 159 insertions(+), 110 deletions(-) >=20 > diff --git a/drivers/net/mlx5/linux/mlx5_os.c > b/drivers/net/mlx5/linux/mlx5_os.c > index 70472efc29..3e496d68ea 100644 > --- a/drivers/net/mlx5/linux/mlx5_os.c > +++ b/drivers/net/mlx5/linux/mlx5_os.c > @@ -881,10 +881,6 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, > unsigned int mpls_en =3D 0; > unsigned int swp =3D 0; > unsigned int mprq =3D 0; > - unsigned int mprq_min_stride_size_n =3D 0; > - unsigned int mprq_max_stride_size_n =3D 0; > - unsigned int mprq_min_stride_num_n =3D 0; > - unsigned int mprq_max_stride_num_n =3D 0; > struct rte_ether_addr mac; > char name[RTE_ETH_NAME_MAX_LEN]; > int own_domain_id =3D 0; > @@ -1039,15 +1035,17 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, > mprq_caps.max_single_wqe_log_num_of_strides); > DRV_LOG(DEBUG, "\tsupported_qpts: %d", > mprq_caps.supported_qpts); > + DRV_LOG(DEBUG, "\tmin_stride_wqe_log_size: %d", > + config->mprq.log_min_stride_wqe_size); > DRV_LOG(DEBUG, "device supports Multi-Packet RQ"); > mprq =3D 1; > - mprq_min_stride_size_n =3D > + config->mprq.log_min_stride_size =3D > mprq_caps.min_single_stride_log_num_of_bytes; > - mprq_max_stride_size_n =3D > + config->mprq.log_max_stride_size =3D > mprq_caps.max_single_stride_log_num_of_bytes; > - mprq_min_stride_num_n =3D > + config->mprq.log_min_stride_num =3D > mprq_caps.min_single_wqe_log_num_of_strides; > - mprq_max_stride_num_n =3D > + config->mprq.log_max_stride_num =3D > mprq_caps.max_single_wqe_log_num_of_strides; > } > #endif > @@ -1548,36 +1546,7 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev, > config->hw_fcs_strip =3D 0; > DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", > (config->hw_fcs_strip ? "" : "not ")); > - if (config->mprq.enabled && mprq) { > - if (config->mprq.log_stride_num && > - (config->mprq.log_stride_num > > mprq_max_stride_num_n || > - config->mprq.log_stride_num < > mprq_min_stride_num_n)) { > - config->mprq.log_stride_num =3D > - > RTE_MIN(RTE_MAX(MLX5_MPRQ_DEFAULT_LOG_STRIDE_NUM, > - mprq_min_stride_num_n), > - mprq_max_stride_num_n); > - DRV_LOG(WARNING, > - "the number of strides" > - " for Multi-Packet RQ is out of range," > - " setting default value (%u)", > - 1 << config->mprq.log_stride_num); > - } > - if (config->mprq.log_stride_size && > - (config->mprq.log_stride_size > mprq_max_stride_size_n > || > - config->mprq.log_stride_size < mprq_min_stride_size_n)) > { > - config->mprq.log_stride_size =3D > - > RTE_MIN(RTE_MAX(MLX5_MPRQ_DEFAULT_LOG_STRIDE_SIZE, > - mprq_min_stride_size_n), > - mprq_max_stride_size_n); > - DRV_LOG(WARNING, > - "the size of a stride" > - " for Multi-Packet RQ is out of range," > - " setting default value (%u)", > - 1 << config->mprq.log_stride_size); > - } > - config->mprq.log_min_stride_size =3D > mprq_min_stride_size_n; > - config->mprq.log_max_stride_size =3D > mprq_max_stride_size_n; > - } else if (config->mprq.enabled && !mprq) { > + if (config->mprq.enabled && !mprq) { > DRV_LOG(WARNING, "Multi-Packet RQ isn't supported"); > config->mprq.enabled =3D 0; > } > @@ -2068,7 +2037,8 @@ mlx5_device_bond_pci_match(const char > *ibdev_name, } >=20 > static void > -mlx5_os_config_default(struct mlx5_dev_config *config) > +mlx5_os_config_default(struct mlx5_dev_config *config, > + struct mlx5_common_dev_config *cconf) > { > memset(config, 0, sizeof(*config)); > config->mps =3D MLX5_ARG_UNSET; > @@ -2080,6 +2050,10 @@ mlx5_os_config_default(struct mlx5_dev_config > *config) > config->vf_nl_en =3D 1; > config->mprq.max_memcpy_len =3D > MLX5_MPRQ_MEMCPY_DEFAULT_LEN; > config->mprq.min_rxqs_num =3D MLX5_MPRQ_MIN_RXQS; > + config->mprq.log_min_stride_wqe_size =3D cconf->devx ? > + cconf- > >hca_attr.log_min_stride_wqe_sz : > + > MLX5_MPRQ_LOG_MIN_STRIDE_WQE_SIZE; > + config->mprq.log_stride_num =3D > MLX5_MPRQ_DEFAULT_LOG_STRIDE_NUM; > config->dv_esw_en =3D 1; > config->dv_flow_en =3D 1; > config->decap_en =3D 1; > @@ -2496,7 +2470,7 @@ mlx5_os_pci_probe_pf(struct > mlx5_common_device *cdev, > uint32_t restore; >=20 > /* Default configuration. */ > - mlx5_os_config_default(&dev_config); > + mlx5_os_config_default(&dev_config, &cdev->config); > dev_config.vf =3D dev_config_vf; > list[i].eth_dev =3D mlx5_dev_spawn(cdev->dev, &list[i], > &dev_config, ð_da); > @@ -2666,7 +2640,7 @@ mlx5_os_auxiliary_probe(struct > mlx5_common_device *cdev) > if (ret !=3D 0) > return ret; > /* Set default config data. */ > - mlx5_os_config_default(&config); > + mlx5_os_config_default(&config, &cdev->config); > config.sf =3D 1; > /* Init spawn data. */ > spawn.max_port =3D 1; > diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index > 4ba90db816..c01fb9566e 100644 > --- a/drivers/net/mlx5/mlx5.h > +++ b/drivers/net/mlx5/mlx5.h > @@ -279,6 +279,10 @@ struct mlx5_dev_config { > unsigned int log_stride_size; /* Log size of a stride. */ > unsigned int log_min_stride_size; /* Log min size of a > stride.*/ > unsigned int log_max_stride_size; /* Log max size of a > stride.*/ > + unsigned int log_min_stride_num; /* Log min num of strides. > */ > + unsigned int log_max_stride_num; /* Log max num of > strides. */ > + unsigned int log_min_stride_wqe_size; > + /* Log min WQE size, (size of single stride)*(num of > strides).*/ > unsigned int max_memcpy_len; > /* Maximum packet size to memcpy Rx packets. */ > unsigned int min_rxqs_num; > diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c > index e76bfaa000..891ac3d874 100644 > --- a/drivers/net/mlx5/mlx5_rxq.c > +++ b/drivers/net/mlx5/mlx5_rxq.c > @@ -1528,6 +1528,126 @@ mlx5_max_lro_msg_size_adjust(struct > rte_eth_dev *dev, uint16_t idx, > priv->max_lro_msg_size * MLX5_LRO_SEG_CHUNK_SIZE); } >=20 > +/** > + * Prepare both size and number of stride for Multi-Packet RQ. > + * > + * @param dev > + * Pointer to Ethernet device. > + * @param idx > + * RX queue index. > + * @param desc > + * Number of descriptors to configure in queue. > + * @param rx_seg_en > + * Indicator if Rx segment enables, if so Multi-Packet RQ doesn't enab= le. > + * @param min_mbuf_size > + * Non scatter min mbuf size, max_rx_pktlen plus overhead. > + * @param actual_log_stride_num > + * Log number of strides to configure for this queue. > + * @param actual_log_stride_size > + * Log stride size to configure for this queue. > + * > + * @return > + * 0 if Multi-Packet RQ is supported, otherwise -1. > + */ > +static int > +mlx5_mprq_prepare(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, > + bool rx_seg_en, uint32_t min_mbuf_size, > + uint32_t *actual_log_stride_num, > + uint32_t *actual_log_stride_size) > +{ > + struct mlx5_priv *priv =3D dev->data->dev_private; > + struct mlx5_dev_config *config =3D &priv->config; > + uint32_t log_min_stride_num =3D config->mprq.log_min_stride_num; > + uint32_t log_max_stride_num =3D config->mprq.log_max_stride_num; > + uint32_t log_def_stride_num =3D > + > RTE_MIN(RTE_MAX(MLX5_MPRQ_DEFAULT_LOG_STRIDE_NUM, > + log_min_stride_num), > + log_max_stride_num); > + uint32_t log_min_stride_size =3D config->mprq.log_min_stride_size; > + uint32_t log_max_stride_size =3D config->mprq.log_max_stride_size; > + uint32_t log_def_stride_size =3D > + > RTE_MIN(RTE_MAX(MLX5_MPRQ_DEFAULT_LOG_STRIDE_SIZE, > + log_min_stride_size), > + log_max_stride_size); > + uint32_t log_stride_wqe_size; > + > + if (mlx5_check_mprq_support(dev) !=3D 1 || rx_seg_en) > + goto unsupport; typo in this label name, will fix during integration. [..] Kindest regards Raslan Darawsheh