From: Tal Shnaiderman <talshn@nvidia.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, matan@nvidia.com, rasland@nvidia.com,
ophirmu@nvidia.com
Subject: [dpdk-dev] [PATCH v2 18/35] net/mlx5/windows: initial probing implementation
Date: Mon, 28 Dec 2020 14:32:45 +0200 [thread overview]
Message-ID: <20201228123302.3608-19-talshn@nvidia.com> (raw)
In-Reply-To: <20201228123302.3608-1-talshn@nvidia.com>
This commit implements mlx5_os_pci_probe API under Windows. It does all
required initializations then it gets the PCI device list using glue API
get_device_list(). Next, all non MLX5 matched devices are filtered out.
The supported NIC types are: CONNECTX4VF, CONNECTX4LXVF, CONNECTX5VF,
CONNECTX5EXVF, CONNECTX5BFVF, CONNECTX6VF, MELLANOX_CONNECTX6DXVF. Each
device in the list is assigned with default configuration parameters,
most of them are 0. The default dv_flow_en parameter value is 1 (which
means Windows match and action flows are based on DV code). Next for
each PCI device call mlx5_dev_spawn() to create an eth device (struct
rte_ethdev). The implementation of device spawn is in the follow up
commit. Finally, the device list is free.
Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Signed-off-by: Ophir Munk <ophirmu@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
drivers/net/mlx5/windows/mlx5_os.c | 267 +++++++++++++++++++++++++++++++++++++
1 file changed, 267 insertions(+)
diff --git a/drivers/net/mlx5/windows/mlx5_os.c b/drivers/net/mlx5/windows/mlx5_os.c
index 14bd5bf39a..d9c402e942 100644
--- a/drivers/net/mlx5/windows/mlx5_os.c
+++ b/drivers/net/mlx5/windows/mlx5_os.c
@@ -9,6 +9,7 @@
#include <stdlib.h>
#include <rte_windows.h>
+#include <rte_ethdev_pci.h>
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
@@ -26,6 +27,65 @@
#include "mlx5_mr.h"
#include "mlx5_flow.h"
+static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
+
+/* Spinlock for mlx5_shared_data allocation. */
+static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
+
+/**
+ * Initialize shared data between primary and secondary process.
+ *
+ * A memzone is reserved by primary process and secondary processes attach to
+ * the memzone.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_init_shared_data(void)
+{
+ const struct rte_memzone *mz;
+ int ret = 0;
+
+ rte_spinlock_lock(&mlx5_shared_data_lock);
+ if (mlx5_shared_data == NULL) {
+ /* Allocate shared memory. */
+ mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
+ sizeof(*mlx5_shared_data),
+ SOCKET_ID_ANY, 0);
+ if (mz == NULL) {
+ DRV_LOG(ERR,
+ "Cannot allocate mlx5 shared data");
+ ret = -rte_errno;
+ goto error;
+ }
+ mlx5_shared_data = mz->addr;
+ memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
+ rte_spinlock_init(&mlx5_shared_data->lock);
+ }
+error:
+ rte_spinlock_unlock(&mlx5_shared_data_lock);
+ return ret;
+}
+
+/**
+ * PMD global initialization.
+ *
+ * Independent from individual device, this function initializes global
+ * per-PMD data structures distinguishing primary and secondary processes.
+ * Hence, each initialization is called once per a process.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+mlx5_init_once(void)
+{
+ if (mlx5_init_shared_data())
+ return -rte_errno;
+ return 0;
+}
+
/**
* Get mlx5 device attributes.
*
@@ -147,6 +207,31 @@ mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
return err;
}
+/**
+ * Spawn an Ethernet device from Verbs information.
+ *
+ * @param dpdk_dev
+ * Backing DPDK device.
+ * @param spawn
+ * Verbs device parameters (name, port, switch_info) to spawn.
+ * @param config
+ * Device configuration parameters.
+ *
+ * @return
+ * NULL pointer. Operation is not supported and rte_errno is set to ENOTSUP.
+ */
+static struct rte_eth_dev *
+mlx5_dev_spawn(struct rte_device *dpdk_dev,
+ struct mlx5_dev_spawn_data *spawn,
+ struct mlx5_dev_config *config)
+{
+ (void)dpdk_dev;
+ (void)spawn;
+ (void)config;
+ rte_errno = -ENOTSUP;
+ return NULL;
+}
+
/**
* This function should share events between multiple ports of single IB
* device. Currently it has no support under Windows.
@@ -339,6 +424,188 @@ mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
return -ENOTSUP;
}
+/**
+ * DPDK callback to register a PCI device.
+ *
+ * This function spawns Ethernet devices out of a given PCI device.
+ *
+ * @param[in] pci_drv
+ * PCI driver structure (mlx5_driver).
+ * @param[in] pci_dev
+ * PCI device information.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int
+mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+ struct rte_pci_device *pci_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;
+ uint32_t restore;
+
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
+ DRV_LOG(ERR, "Secondary process is not supported on Windows.");
+ return -ENOTSUP;
+ }
+ ret = mlx5_init_once();
+ if (ret) {
+ DRV_LOG(ERR, "unable to init PMD global data: %s",
+ strerror(rte_errno));
+ 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) {
+ rte_errno = errno ? errno : ENOSYS;
+ DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
+ 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) {
+ if (pci_dev->addr.bus != devx_bdf_devs->bus_id ||
+ pci_dev->addr.devid != devx_bdf_devs->dev_id ||
+ pci_dev->addr.function != devx_bdf_devs->fnc_id) {
+ devx_bdf_devs++;
+ continue;
+ }
+
+ 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;
+ 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].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,
+ };
+ /* Device specific configuration. */
+ switch (pci_dev->id.device_id) {
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
+ case PCI_DEVICE_ID_MELLANOX_CONNECTXVF:
+ dev_config_vf = 1;
+ break;
+ default:
+ 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.dbnc = MLX5_ARG_UNSET;
+ 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.mr_ext_memseg_en = 1;
+ 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(&pci_dev->device,
+ &list[ns],
+ &dev_config);
+ if (!list[ns].eth_dev)
+ goto exit;
+ restore = list[ns].eth_dev->data->dev_flags;
+ rte_eth_copy_pci_info(list[ns].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;
+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);
+ return ret;
+}
+
/**
* Set the reg_mr and dereg_mr call backs
*
--
2.16.1.windows.4
next prev parent reply other threads:[~2020-12-28 12:39 UTC|newest]
Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-17 17:30 [dpdk-dev] [PATCH 00/35] mlx5 Windows support - part #6 Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 01/35] common/mlx5/windows: add missing DV and IBV definitions Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 00/35] mlx5 Windows support - part #6 Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 01/35] common/mlx5/windows: add missing DV and IBV definitions Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 02/35] mlx5/windows: add mlx5 macros for fs name and path Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 03/35] common/mlx5: add rte compatibility header file Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 04/35] common/mlx5/windows: add DevX UAR getters Tal Shnaiderman
2021-01-08 12:08 ` Ferruh Yigit
2021-01-08 16:08 ` Ophir Munk
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 05/35] common/mlx5/windows: wrap event channel APIs with OS calls Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 06/35] net/mlx5/windows: add memory region callbacks Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 07/35] net/mlx5/windows: add stubs for MP requests Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 08/35] net/mlx5/windows: support get mac Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 09/35] net/mlx5/windows: add ethdev stub operations Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 10/35] net/mlx5/windows: support link update Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 11/35] net/mlx5/windows: support read clock Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 12/35] net/mlx5/windows: support get mtu Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 13/35] net/mlx5/windows: support get interface name Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 14/35] net/mlx5/windows: support device removed query Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 15/35] net/mlx5/windws: add VLAN stubs Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 16/35] net/mlx5/windows: support get pdn Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 17/35] net/mlx5/windows: support open device Tal Shnaiderman
2020-12-28 12:32 ` Tal Shnaiderman [this message]
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 19/35] net/mlx5/windws: spawn eth devices Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 20/35] net/mlx5/windows: support VF PCI address Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 21/35] net/mlx5/linux: wrap adjust flow priority with OS calls Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 22/35] net/mlx5/linux: add OS default miss flow action Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 23/35] net/mlx5/linux: fix add OS dest_devx_tir action Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 24/35] net/mlx5/windows: introduce flow support Tal Shnaiderman
2021-01-08 14:38 ` Ferruh Yigit
2021-01-08 14:55 ` Thomas Monjalon
2021-01-08 16:15 ` Ophir Munk
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 25/35] net/mlx5/windows: create flow matcher object Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 26/35] net/mlx5/windows: create flow action dest TIR object Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 27/35] net/mlx5/windows: create flow rule Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 28/35] net/mlx5: use HAVE_INFINIBAND_VERBS_H in shared code Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 29/35] net/mlx5: fix separating eth_dev_ops per OS Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 30/35] net/mlx5: define MLX5_NAMESIZE for device interface size Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 31/35] net/mlx5: use OS independent code in ASO feature Tal Shnaiderman
2020-12-28 12:32 ` [dpdk-dev] [PATCH v2 32/35] mlx5: use init function for ctx list mutex Tal Shnaiderman
2020-12-28 12:33 ` [dpdk-dev] [PATCH v2 33/35] mlx5: use OS function for dr_sync_domain Tal Shnaiderman
2020-12-28 12:33 ` [dpdk-dev] [PATCH v2 34/35] mlx5: do not fail on IPv6 broadcast flow creation failure Tal Shnaiderman
2020-12-28 12:33 ` [dpdk-dev] [PATCH v2 35/35] net/mlx5: fix warnings on comparison sign mismatch Tal Shnaiderman
2021-01-03 2:05 ` [dpdk-dev] [PATCH v2 00/35] mlx5 Windows support - part #6 Raslan Darawsheh
2020-12-17 17:30 ` [dpdk-dev] [PATCH 02/35] mlx5/windows: add mlx5 macros for fs name and path Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 03/35] common/mlx5: add rte compatibility header file Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 04/35] common/mlx5/windows: add DevX UAR getters Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 05/35] common/mlx5/windows: wrap event channel APIs with OS calls Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 06/35] net/mlx5/windows: add memory region callbacks Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 07/35] net/mlx5/windows: add stubs for MP requests Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 08/35] net/mlx5/windows: support get mac Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 09/35] net/mlx5/windows: add ethdev stub operations Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 10/35] net/mlx5/windows: support link update Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 11/35] net/mlx5/windows: support read clock Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 12/35] net/mlx5/windows: support get mtu Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 13/35] net/mlx5/windows: support get interface name Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 14/35] net/mlx5/windows: support device removed query Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 15/35] net/mlx5/windws: add VLAN stubs Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 16/35] net/mlx5/windows: support get pdn Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 17/35] net/mlx5/windows: support open device Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 18/35] net/mlx5/windows: initial probing implementation Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 19/35] net/mlx5/windws: spawn eth devices Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 20/35] net/mlx5/windows: support VF PCI address Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 21/35] net/mlx5/linux: wrap adjust flow priority with OS calls Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 22/35] net/mlx5/linux: add OS default miss flow action Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 23/35] net/mlx5/linux: fix add OS dest_devx_tir action Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 24/35] net/mlx5/windows: introduce flow support Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 25/35] net/mlx5/windows: create flow matcher object Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 26/35] net/mlx5/windows: create flow action dest TIR object Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 27/35] net/mlx5/windows: create flow rule Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 28/35] net/mlx5: use HAVE_INFINIBAND_VERBS_H in shared code Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 29/35] net/mlx5: fix separating eth_dev_ops per OS Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 30/35] net/mlx5: define MLX5_NAMESIZE for device interface size Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 31/35] net/mlx5: use OS independent code in ASO feature Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 32/35] mlx5: use init function for ctx list mutex Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 33/35] mlx5: use OS function for dr_sync_domain Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 34/35] mlx5: do not fail on IPv6 broadcast flow creation failure Tal Shnaiderman
2020-12-17 17:30 ` [dpdk-dev] [PATCH 35/35] net/mlx5: fix warnings on comparison sign mismatch Tal Shnaiderman
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