From 5021ce2085ef7052226dfc6e77a78c895caeccef Mon Sep 17 00:00:00 2001 From: Michael Baum Date: Tue, 19 Oct 2021 23:55:49 +0300 Subject: [PATCH] net/mlx5: rearrange probing functions for Windows Rearrange device detection code. Rearrange configuration structures filling. Remove unneeded variables. Signed-off-by: Michael Baum Acked-by: Matan Azrad --- drivers/net/mlx5/windows/mlx5_os.c | 224 ++++++++++++----------------- 1 file changed, 94 insertions(+), 130 deletions(-) diff --git a/drivers/net/mlx5/windows/mlx5_os.c b/drivers/net/mlx5/windows/mlx5_os.c index dc6c080e13..fc903752e5 100644 --- a/drivers/net/mlx5/windows/mlx5_os.c +++ b/drivers/net/mlx5/windows/mlx5_os.c @@ -993,9 +993,9 @@ mlx5_match_devx_devices_to_addr(struct devx_device_bdf *devx_bdf, if (mlx5_match_devx_bdf_to_addr(devx_bdf, addr)) return 1; - /** - * Didn't match on Native/PF BDF, could still - * Match a VF BDF, check it next + /* + * Didn't match on Native/PF BDF, could still match a VF BDF, + * check it next. */ err = mlx5_glue->query_device(devx_bdf, &mlx5_dev); if (err) { @@ -1008,6 +1008,52 @@ mlx5_match_devx_devices_to_addr(struct devx_device_bdf *devx_bdf, return 0; } +/** + * Look for DevX device that match to given rte_device. + * + * @param dev + * Pointer to the generic device. + * @param orig_devx_list + * Pointer to head of DevX devices list. + * @param n + * Number of devices in given DevX devices list. + * + * @return + * A device match on success, NULL otherwise and rte_errno is set. + */ +static struct devx_device_bdf * +mlx5_os_get_devx_device(struct rte_device *dev, + struct devx_device_bdf *orig_devx_list, int n) +{ + struct devx_device_bdf *devx_list = orig_devx_list; + struct devx_device_bdf *devx_match = NULL; + struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev); + struct rte_pci_addr *addr = &pci_dev->addr; + + while (n-- > 0) { + int ret = mlx5_match_devx_devices_to_addr(devx_list, addr); + if (!ret) { + devx_list++; + continue; + } + if (ret != 1) { + rte_errno = ret; + return NULL; + } + devx_match = devx_list; + break; + } + if (devx_match == NULL) { + /* No device matches, just complain and bail out. */ + DRV_LOG(WARNING, + "No DevX device matches PCI device " PCI_PRI_FMT "," + " is DevX Configured?", + addr->domain, addr->bus, addr->devid, addr->function); + rte_errno = ENOENT; + } + return devx_match; +} + /** * DPDK callback to register a PCI device. * @@ -1023,37 +1069,34 @@ int mlx5_os_net_probe(struct mlx5_common_device *cdev) { struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(cdev->dev); - struct devx_device_bdf *devx_bdf_devs, *orig_devx_bdf_devs; - /* - * Number of found IB Devices matching with requested PCI BDF. - * nd != 1 means there are multiple IB devices over the same - * PCI device and we have representors and master. - */ - unsigned int nd = 0; - /* - * Number of found IB device Ports. nd = 1 and np = 1..n means - * we have the single multiport IB device, and there may be - * representors attached to some of found ports. - * Currently not supported. - * unsigned int np = 0; - */ - - /* - * Number of DPDK ethernet devices to Spawn - either over - * multiple IB devices or multiple ports of single IB device. - * Actually this is the number of iterations to spawn. - */ - unsigned int ns = 0; - /* - * Bonding device - * < 0 - no bonding device (single one) - * >= 0 - bonding device (value is slave PF index) - */ - int bd = -1; - struct mlx5_dev_spawn_data *list = NULL; - struct mlx5_dev_config dev_config; - unsigned int dev_config_vf; - int ret, err; + struct devx_device_bdf *devx_list; + struct devx_device_bdf *devx_bdf_match; + struct mlx5_dev_spawn_data spawn = { + .pf_bond = -1, + .max_port = 1, + .phys_port = 1, + .pci_dev = pci_dev, + .cdev = cdev, + .ifindex = -1, /* Spawn will assign */ + .info = (struct mlx5_switch_info){ + .name_type = MLX5_PHYS_PORT_NAME_TYPE_UPLINK, + }, + }; + struct mlx5_dev_config dev_config = { + .rx_vec_en = 1, + .txq_inline_max = MLX5_ARG_UNSET, + .txq_inline_min = MLX5_ARG_UNSET, + .txq_inline_mpw = MLX5_ARG_UNSET, + .txqs_inline = MLX5_ARG_UNSET, + .mprq = { + .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN, + .min_rxqs_num = MLX5_MPRQ_MIN_RXQS, + }, + .dv_flow_en = 1, + .log_hp_size = MLX5_ARG_UNSET, + }; + int ret; + int n; uint32_t restore; if (rte_eal_process_type() == RTE_PROC_SECONDARY) { @@ -1067,74 +1110,18 @@ mlx5_os_net_probe(struct mlx5_common_device *cdev) return -rte_errno; } errno = 0; - devx_bdf_devs = mlx5_glue->get_device_list(&ret); - orig_devx_bdf_devs = devx_bdf_devs; - if (!devx_bdf_devs) { + devx_list = mlx5_glue->get_device_list(&n); + if (devx_list == NULL) { rte_errno = errno ? errno : ENOSYS; - DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?"); + DRV_LOG(ERR, "Cannot list devices, is DevX enabled?"); return -rte_errno; } - /* - * First scan the list of all Infiniband devices to find - * matching ones, gathering into the list. - */ - struct devx_device_bdf *devx_bdf_match[ret + 1]; - - while (ret-- > 0) { - err = mlx5_match_devx_devices_to_addr(devx_bdf_devs, - &pci_dev->addr); - if (!err) { - devx_bdf_devs++; - continue; - } - if (err != 1) { - ret = -err; - goto exit; - } - devx_bdf_match[nd++] = devx_bdf_devs; - } - devx_bdf_match[nd] = NULL; - if (!nd) { - /* No device matches, just complain and bail out. */ - DRV_LOG(WARNING, - "no DevX device matches PCI device " PCI_PRI_FMT "," - " is DevX Configured?", - pci_dev->addr.domain, pci_dev->addr.bus, - pci_dev->addr.devid, pci_dev->addr.function); - rte_errno = ENOENT; + devx_bdf_match = mlx5_os_get_devx_device(cdev->dev, devx_list, n); + if (devx_bdf_match == NULL) { ret = -rte_errno; goto exit; } - /* - * Now we can determine the maximal - * amount of devices to be spawned. - */ - list = mlx5_malloc(MLX5_MEM_ZERO, - sizeof(struct mlx5_dev_spawn_data), - RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY); - if (!list) { - DRV_LOG(ERR, "spawn data array allocation failure"); - rte_errno = ENOMEM; - ret = -rte_errno; - goto exit; - } - memset(&list[ns].info, 0, sizeof(list[ns].info)); - list[ns].max_port = 1; - list[ns].phys_port = 1; - list[ns].phys_dev = devx_bdf_match[ns]; - list[ns].eth_dev = NULL; - list[ns].pci_dev = pci_dev; - list[ns].cdev = cdev; - list[ns].pf_bond = bd; - list[ns].ifindex = -1; /* Spawn will assign */ - list[ns].info = - (struct mlx5_switch_info){ - .master = 0, - .representor = 0, - .name_type = MLX5_PHYS_PORT_NAME_TYPE_UPLINK, - .port_name = 0, - .switch_id = 0, - }; + spawn.phys_dev = devx_bdf_match; /* Device specific configuration. */ switch (pci_dev->id.device_id) { case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF: @@ -1144,47 +1131,24 @@ mlx5_os_net_probe(struct mlx5_common_device *cdev) case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF: case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF: case PCI_DEVICE_ID_MELLANOX_CONNECTXVF: - dev_config_vf = 1; + dev_config.vf = 1; break; default: - dev_config_vf = 0; + dev_config.vf = 0; break; } - /* Default configuration. */ - memset(&dev_config, 0, sizeof(struct mlx5_dev_config)); - dev_config.vf = dev_config_vf; - dev_config.mps = 0; - dev_config.rx_vec_en = 1; - dev_config.txq_inline_max = MLX5_ARG_UNSET; - dev_config.txq_inline_min = MLX5_ARG_UNSET; - dev_config.txq_inline_mpw = MLX5_ARG_UNSET; - dev_config.txqs_inline = MLX5_ARG_UNSET; - dev_config.vf_nl_en = 0; - dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN; - dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS; - dev_config.dv_esw_en = 0; - dev_config.dv_flow_en = 1; - dev_config.decap_en = 0; - dev_config.log_hp_size = MLX5_ARG_UNSET; - list[ns].eth_dev = mlx5_dev_spawn(cdev->dev, &list[ns], &dev_config); - if (!list[ns].eth_dev) + spawn.eth_dev = mlx5_dev_spawn(cdev->dev, &spawn, &dev_config); + if (!spawn.eth_dev) { + ret = -rte_errno; goto exit; - restore = list[ns].eth_dev->data->dev_flags; - rte_eth_copy_pci_info(list[ns].eth_dev, pci_dev); + } + restore = spawn.eth_dev->data->dev_flags; + rte_eth_copy_pci_info(spawn.eth_dev, pci_dev); /* Restore non-PCI flags cleared by the above call. */ - list[ns].eth_dev->data->dev_flags |= restore; - rte_eth_dev_probing_finish(list[ns].eth_dev); - ret = 0; + spawn.eth_dev->data->dev_flags |= restore; + rte_eth_dev_probing_finish(spawn.eth_dev); exit: - /* - * Do the routine cleanup: - * - free allocated spawn data array - * - free the device list - */ - if (list) - mlx5_free(list); - MLX5_ASSERT(orig_devx_bdf_devs); - mlx5_glue->free_device_list(orig_devx_bdf_devs); + mlx5_glue->free_device_list(devx_list); return ret; } -- 2.20.1