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net/mlx5: add operations for secondary process

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Add operations that are safe for secondary processes:
* (x)stats
* device info get
* rx/tx descriptor status

Signed-off-by: Xueming Li <xuemingl@mellanox.com>
Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Xueming Li 2017-10-06 23:45:51 +08:00 committed by Ferruh Yigit
parent 1e3a39f72d
commit 87ec44ce16
5 changed files with 24 additions and 9 deletions
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1
doc/guides/nics/features/mlx5.ini
View File

@ -35,6 +35,7 @@ Tx descriptor status = Y
Basic stats = Y
Extended stats = Y
Stats per queue = Y
Multiprocess aware = Y
Other kdrv = Y
ARMv8 = Y
Power8 = Y

4
doc/guides/nics/mlx5.rst
View File

@ -92,7 +92,7 @@ Features
- Flow director (RTE_FDIR_MODE_PERFECT, RTE_FDIR_MODE_PERFECT_MAC_VLAN and
RTE_ETH_FDIR_REJECT).
- Flow API.
- Secondary process TX is supported.
- Multiple process.
- KVM and VMware ESX SR-IOV modes are supported.
- RSS hash result is supported.
- Hardware TSO.
@ -106,7 +106,7 @@ Limitations
- Inner RSS for VXLAN frames is not supported yet.
- Port statistics through software counters only.
- Hardware checksum RX offloads for VXLAN inner header are not supported yet.
- Secondary process RX is not supported.
- Forked secondary process not supported.
- 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.

16
drivers/net/mlx5/mlx5.c
View File

@ -303,6 +303,18 @@ static const struct eth_dev_ops mlx5_dev_ops = {
.rx_queue_intr_disable = mlx5_rx_intr_disable,
};
static const struct eth_dev_ops mlx5_dev_sec_ops = {
.stats_get = mlx5_stats_get,
.stats_reset = mlx5_stats_reset,
.xstats_get = mlx5_xstats_get,
.xstats_reset = mlx5_xstats_reset,
.xstats_get_names = mlx5_xstats_get_names,
.dev_infos_get = mlx5_dev_infos_get,
.rx_descriptor_status = mlx5_rx_descriptor_status,
.tx_descriptor_status = mlx5_tx_descriptor_status,
};
static struct {
struct rte_pci_addr pci_addr; /* associated PCI address */
uint32_t ports; /* physical ports bitfield. */
@ -640,7 +652,7 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
goto error;
}
eth_dev->device = &pci_dev->device;
eth_dev->dev_ops = NULL;
eth_dev->dev_ops = &mlx5_dev_sec_ops;
priv = eth_dev->data->dev_private;
/* Receive command fd from primary process */
err = priv_socket_connect(priv);
@ -707,6 +719,8 @@ mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
}
priv->ctx = ctx;
strncpy(priv->ibdev_path, priv->ctx->device->ibdev_path,
sizeof(priv->ibdev_path));
priv->device_attr = device_attr;
priv->port = port;
priv->pd = pd;

1
drivers/net/mlx5/mlx5.h
View File

@ -91,6 +91,7 @@ struct priv {
struct ibv_context *ctx; /* Verbs context. */
struct ibv_device_attr_ex device_attr; /* Device properties. */
struct ibv_pd *pd; /* Protection Domain. */
char ibdev_path[IBV_SYSFS_PATH_MAX]; /* IB device path for secondary */
/*
* MAC addresses array and configuration bit-field.
* An extra entry that cannot be modified by the DPDK is reserved

11
drivers/net/mlx5/mlx5_ethdev.c
View File

@ -165,7 +165,7 @@ priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE])
char match[IF_NAMESIZE] = "";
{
MKSTR(path, "%s/device/net", priv->ctx->device->ibdev_path);
MKSTR(path, "%s/device/net", priv->ibdev_path);
dir = opendir(path);
if (dir == NULL)
@ -183,7 +183,7 @@ priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE])
continue;
MKSTR(path, "%s/device/net/%s/%s",
priv->ctx->device->ibdev_path, name,
priv->ibdev_path, name,
(dev_type ? "dev_id" : "dev_port"));
file = fopen(path, "rb");
@ -271,11 +271,11 @@ priv_sysfs_read(const struct priv *priv, const char *entry,
if (priv_is_ib_cntr(entry)) {
MKSTR(path, "%s/ports/1/hw_counters/%s",
priv->ctx->device->ibdev_path, entry);
priv->ibdev_path, entry);
file = fopen(path, "rb");
} else {
MKSTR(path, "%s/device/net/%s/%s",
priv->ctx->device->ibdev_path, ifname, entry);
priv->ibdev_path, ifname, entry);
file = fopen(path, "rb");
}
if (file == NULL)
@ -318,8 +318,7 @@ priv_sysfs_write(const struct priv *priv, const char *entry,
if (priv_get_ifname(priv, &ifname))
return -1;
MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->ibdev_path,
ifname, entry);
MKSTR(path, "%s/device/net/%s/%s", priv->ibdev_path, ifname, entry);
file = fopen(path, "wb");
if (file == NULL)