#include "mlx5_autoconf.h"
#include "mlx5_defs.h"
+/* Device parameter to enable RX completion queue compression. */
+#define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"
+
+/* Device parameter to configure inline send. */
+#define MLX5_TXQ_INLINE "txq_inline"
+
+/*
+ * Device parameter to configure the number of TX queues threshold for
+ * enabling inline send.
+ */
+#define MLX5_TXQS_MIN_INLINE "txqs_min_inline"
+
+/* Device parameter to enable multi-packet send WQEs. */
+#define MLX5_TXQ_MPW_EN "txq_mpw_en"
+
/**
* Retrieve integer value from environment variable.
*
mlx5_args_check(const char *key, const char *val, void *opaque)
{
struct priv *priv = opaque;
+ unsigned long tmp;
- /* No parameters are expected at the moment. */
- (void)priv;
- (void)val;
- WARN("%s: unknown parameter", key);
- return -EINVAL;
+ errno = 0;
+ tmp = strtoul(val, NULL, 0);
+ if (errno) {
+ WARN("%s: \"%s\" is not a valid integer", key, val);
+ return errno;
+ }
+ if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
+ priv->cqe_comp = !!tmp;
+ } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
+ priv->txq_inline = tmp;
+ } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
+ priv->txqs_inline = tmp;
+ } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
+ priv->mps = !!tmp;
+ } else {
+ WARN("%s: unknown parameter", key);
+ return -EINVAL;
+ }
+ return 0;
}
/**
mlx5_args(struct priv *priv, struct rte_devargs *devargs)
{
const char **params = (const char *[]){
+ MLX5_RXQ_CQE_COMP_EN,
+ MLX5_TXQ_INLINE,
+ MLX5_TXQS_MIN_INLINE,
+ MLX5_TXQ_MPW_EN,
NULL,
};
struct rte_kvargs *kvlist;
* 0 on success, negative errno value on failure.
*/
static int
-mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
+mlx5_pci_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
{
struct ibv_device **list;
struct ibv_device *ibv_dev;
priv->port = port;
priv->pd = pd;
priv->mtu = ETHER_MTU;
+ priv->mps = mps; /* Enable MPW by default if supported. */
+ priv->cqe_comp = 1; /* Enable compression by default. */
err = mlx5_args(priv, pci_dev->devargs);
if (err) {
ERROR("failed to process device arguments: %s",
priv_get_num_vfs(priv, &num_vfs);
priv->sriov = (num_vfs || sriov);
- priv->mps = mps;
+ if (priv->mps && !mps) {
+ ERROR("multi-packet send not supported on this device"
+ " (" MLX5_TXQ_MPW_EN ")");
+ err = ENOTSUP;
+ goto port_error;
+ }
/* Allocate and register default RSS hash keys. */
priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
sizeof((*priv->rss_conf)[0]), 0);
snprintf(name, sizeof(name), "%s port %u",
ibv_get_device_name(ibv_dev), port);
- eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
+ eth_dev = rte_eth_dev_allocate(name);
}
if (eth_dev == NULL) {
ERROR("can not allocate rte ethdev");
.pci_drv = {
.name = MLX5_DRIVER_NAME,
.id_table = mlx5_pci_id_map,
- .devinit = mlx5_pci_devinit,
+ .probe = mlx5_pci_probe,
.drv_flags = RTE_PCI_DRV_INTR_LSC,
},
.dev_private_size = sizeof(struct priv)
/**
* Driver initialization routine.
*/
-static int
-rte_mlx5_pmd_init(const char *name, const char *args)
+RTE_INIT(rte_mlx5_pmd_init);
+static void
+rte_mlx5_pmd_init(void)
{
- (void)name;
- (void)args;
/*
* RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
* huge pages. Calling ibv_fork_init() during init allows
setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
ibv_fork_init();
rte_eal_pci_register(&mlx5_driver.pci_drv);
- return 0;
}
-static struct rte_driver rte_mlx5_driver = {
- .type = PMD_PDEV,
- .name = MLX5_DRIVER_NAME,
- .init = rte_mlx5_pmd_init,
-};
-
-PMD_REGISTER_DRIVER(rte_mlx5_driver)
+DRIVER_EXPORT_NAME(net_mlx5, __COUNTER__);
+DRIVER_REGISTER_PCI_TABLE(net_mlx5, mlx5_pci_id_map);