mlx5 changes should be reviwed by maintainers very carefully, since
we are not sure if we patch it correctly.
[1] https://sourceware.org/bugzilla/show_bug.cgi?id=28060
v5:
- try to improve name: backer_port_id instead of parent_port_id
- init new field to RTE_MAX_ETHPORTS on allocation to avoid
zero port usage by default
v4:
- apply mlx5 review notes: remove fallback from generic ethdev
code and add fallback to mlx5 code to handle legacy usecase
v3:
- fix mlx5 build breakage
v2:
- fix mlx5 review notes
- try device port ID first before parent in order to address
backward compatibility issue
drivers/net/bnxt/bnxt_reps.c | 1 +
drivers/net/enic/enic_vf_representor.c | 1 +
drivers/net/i40e/i40e_vf_representor.c | 1 +
drivers/net/ice/ice_dcf_vf_representor.c | 1 +
drivers/net/ixgbe/ixgbe_vf_representor.c | 1 +
drivers/net/mlx5/linux/mlx5_os.c | 13 +++++++++++++
drivers/net/mlx5/windows/mlx5_os.c | 13 +++++++++++++
lib/ethdev/ethdev_driver.h | 6 +++---
lib/ethdev/rte_class_eth.c | 2 +-
lib/ethdev/rte_ethdev.c | 9 +++++----
lib/ethdev/rte_ethdev_core.h | 6 ++++++
11 files changed, 46 insertions(+), 8 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_reps.c b/drivers/net/bnxt/bnxt_reps.c
index bdbad53b7d..0d50c0f1da 100644
--- a/drivers/net/bnxt/bnxt_reps.c
+++ b/drivers/net/bnxt/bnxt_reps.c
@@ -187,6 +187,7 @@ int bnxt_representor_init(struct rte_eth_dev *eth_dev, void
*params)
eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR |
RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
eth_dev->data->representor_id = rep_params->vf_id;
+ eth_dev->data->backer_port_id = rep_params->parent_dev->data->port_id;
rte_eth_random_addr(vf_rep_bp->dflt_mac_addr);
memcpy(vf_rep_bp->mac_addr, vf_rep_bp->dflt_mac_addr,
diff --git a/drivers/net/enic/enic_vf_representor.c
b/drivers/net/enic/enic_vf_representor.c
index 79dd6e5640..fedb09ecd6 100644
--- a/drivers/net/enic/enic_vf_representor.c
+++ b/drivers/net/enic/enic_vf_representor.c
@@ -662,6 +662,7 @@ int enic_vf_representor_init(struct rte_eth_dev *eth_dev,
void *init_params)
eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR |
RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
eth_dev->data->representor_id = vf->vf_id;
+ eth_dev->data->backer_port_id = pf->port_id;
eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr_vf",
sizeof(struct rte_ether_addr) *
ENIC_UNICAST_PERFECT_FILTERS, 0);
diff --git a/drivers/net/i40e/i40e_vf_representor.c
b/drivers/net/i40e/i40e_vf_representor.c
index 0481b55381..d65b821a01 100644
--- a/drivers/net/i40e/i40e_vf_representor.c
+++ b/drivers/net/i40e/i40e_vf_representor.c
@@ -514,6 +514,7 @@ i40e_vf_representor_init(struct rte_eth_dev *ethdev, void
*init_params)
ethdev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR |
RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
ethdev->data->representor_id = representor->vf_id;
+ ethdev->data->backer_port_id = pf->dev_data->port_id;
/* Setting the number queues allocated to the VF */
ethdev->data->nb_rx_queues = vf->vsi->nb_qps;
diff --git a/drivers/net/ice/ice_dcf_vf_representor.c
b/drivers/net/ice/ice_dcf_vf_representor.c
index 970461f3e9..e51d0aa6b9 100644
--- a/drivers/net/ice/ice_dcf_vf_representor.c
+++ b/drivers/net/ice/ice_dcf_vf_representor.c
@@ -418,6 +418,7 @@ ice_dcf_vf_repr_init(struct rte_eth_dev *vf_rep_eth_dev,
void *init_param)
vf_rep_eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
vf_rep_eth_dev->data->representor_id = repr->vf_id;
+ vf_rep_eth_dev->data->backer_port_id = repr->dcf_eth_dev->data->port_id;
vf_rep_eth_dev->data->mac_addrs = &repr->mac_addr;
diff --git a/drivers/net/ixgbe/ixgbe_vf_representor.c b/drivers/net/ixgbe/ixgbe_vf_representor.c
index d5b636a194..9fa75984fb 100644
--- a/drivers/net/ixgbe/ixgbe_vf_representor.c
+++ b/drivers/net/ixgbe/ixgbe_vf_representor.c
@@ -197,6 +197,7 @@ ixgbe_vf_representor_init(struct rte_eth_dev *ethdev, void
*init_params)
ethdev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
ethdev->data->representor_id = representor->vf_id;
+ ethdev->data->backer_port_id = representor->pf_ethdev->data->port_id;
/* Set representor device ops */
ethdev->dev_ops = &ixgbe_vf_representor_dev_ops;
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 470b16cb9a..1cddaaba1a 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1677,6 +1677,19 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
if (priv->representor) {
eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
eth_dev->data->representor_id = priv->representor_id;
+ MLX5_ETH_FOREACH_DEV(port_id, &priv->pci_dev->device) {
+ struct mlx5_priv *opriv =
+ rte_eth_devices[port_id].data->dev_private;
+ if (opriv &&
+ opriv->master &&
+ opriv->domain_id == priv->domain_id &&
+ opriv->sh == priv->sh) {
+ eth_dev->data->backer_port_id = port_id;
+ break;
+ }
+ }
+ if (port_id >= RTE_MAX_ETHPORTS)
+ eth_dev->data->backer_port_id = eth_dev->data->port_id;
}
priv->mp_id.port_id = eth_dev->data->port_id;
strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
diff --git a/drivers/net/mlx5/windows/mlx5_os.c
b/drivers/net/mlx5/windows/mlx5_os.c
index 26fa927039..a9c244c7dc 100644
--- a/drivers/net/mlx5/windows/mlx5_os.c
+++ b/drivers/net/mlx5/windows/mlx5_os.c
@@ -543,6 +543,19 @@ mlx5_dev_spawn(struct rte_device *dpdk_dev,
if (priv->representor) {
eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
eth_dev->data->representor_id = priv->representor_id;
+ MLX5_ETH_FOREACH_DEV(port_id, &priv->pci_dev->device) {
+ struct mlx5_priv *opriv =
+ rte_eth_devices[port_id].data->dev_private;
+ if (opriv &&
+ opriv->master &&
+ opriv->domain_id == priv->domain_id &&
+ opriv->sh == priv->sh) {
+ eth_dev->data->backer_port_id = port_id;
+ break;
+ }
+ }
+ if (port_id >= RTE_MAX_ETHPORTS)
+ eth_dev->data->backer_port_id = eth_dev->data->port_id;
}
/*
* Store associated network device interface index. This index
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index 40e474aa7e..b940e6cb38 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -1248,8 +1248,8 @@ struct rte_eth_devargs {
* For backward compatibility, if no representor info, direct
* map legacy VF (no controller and pf).
*
- * @param ethdev
- * Handle of ethdev port.
+ * @param port_id
+ * Port ID of the backing device.
* @param type
* Representor type.
* @param controller
@@ -1266,7 +1266,7 @@ struct rte_eth_devargs {
*/
__rte_internal
int
-rte_eth_representor_id_get(const struct rte_eth_dev *ethdev,
+rte_eth_representor_id_get(uint16_t port_id,
enum rte_eth_representor_type type,
int controller, int pf, int representor_port,
uint16_t *repr_id);
diff --git a/lib/ethdev/rte_class_eth.c b/lib/ethdev/rte_class_eth.c
index 1fe5fa1f36..eda216ced5 100644
--- a/lib/ethdev/rte_class_eth.c
+++ b/lib/ethdev/rte_class_eth.c
@@ -95,7 +95,7 @@ eth_representor_cmp(const char *key __rte_unused,
c = i / (np * nf);
p = (i / nf) % np;
f = i % nf;
- if (rte_eth_representor_id_get(edev,
+ if (rte_eth_representor_id_get(edev->data->backer_port_id,
eth_da.type,
eth_da.nb_mh_controllers == 0 ? -1 :
eth_da.mh_controllers[c],
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index daf5ca9242..7c9b0d6b3b 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -524,6 +524,7 @@ rte_eth_dev_allocate(const char *name)
eth_dev = eth_dev_get(port_id);
strlcpy(eth_dev->data->name, name, sizeof(eth_dev->data->name));
eth_dev->data->port_id = port_id;
+ eth_dev->data->backer_port_id = RTE_MAX_ETHPORTS;
eth_dev->data->mtu = RTE_ETHER_MTU;
pthread_mutex_init(ð_dev->data->flow_ops_mutex, NULL);
@@ -5996,7 +5997,7 @@ rte_eth_devargs_parse(const char *dargs, struct rte_eth_devargs *eth_da)
}
int
-rte_eth_representor_id_get(const struct rte_eth_dev *ethdev,
+rte_eth_representor_id_get(uint16_t port_id,
enum rte_eth_representor_type type,
int controller, int pf, int representor_port,
uint16_t *repr_id)
@@ -6012,7 +6013,7 @@ rte_eth_representor_id_get(const struct rte_eth_dev
*ethdev,
return -EINVAL;
/* Get PMD representor range info. */
- ret = rte_eth_representor_info_get(ethdev->data->port_id, NULL);
+ ret = rte_eth_representor_info_get(port_id, NULL);
if (ret == -ENOTSUP && type == RTE_ETH_REPRESENTOR_VF &&
controller == -1 && pf == -1) {
/* Direct mapping for legacy VF representor. */
@@ -6027,7 +6028,7 @@ rte_eth_representor_id_get(const struct rte_eth_dev
*ethdev,
if (info == NULL)
return -ENOMEM;
info->nb_ranges_alloc = n;
- ret = rte_eth_representor_info_get(ethdev->data->port_id, info);
+ ret = rte_eth_representor_info_get(port_id, info);
if (ret < 0)
goto out;
@@ -6046,7 +6047,7 @@ rte_eth_representor_id_get(const struct rte_eth_dev *ethdev,
continue;
if (info->ranges[i].id_end < info->ranges[i].id_base) {
RTE_LOG(WARNING, EAL, "Port %hu invalid representor ID Range
%u - %u, entry %d\n",
- ethdev->data->port_id, info->ranges[i].id_base,
+ port_id, info->ranges[i].id_base,
info->ranges[i].id_end, i);
continue;
diff --git a/lib/ethdev/rte_ethdev_core.h b/lib/ethdev/rte_ethdev_core.h
index edf96de2dc..48b814e8a1 100644
--- a/lib/ethdev/rte_ethdev_core.h
+++ b/lib/ethdev/rte_ethdev_core.h
@@ -185,6 +185,12 @@ struct rte_eth_dev_data {
/**< Switch-specific identifier.
* Valid if RTE_ETH_DEV_REPRESENTOR in dev_flags.
*/
+ uint16_t backer_port_id;
+ /**< Port ID of the backing device.
+ * This device will be used to query representor
+ * info and calculate representor IDs.
+ * Valid if RTE_ETH_DEV_REPRESENTOR in dev_flags.
+ */
pthread_mutex_t flow_ops_mutex; /**< rte_flow ops mutex. */
uint64_t reserved_64s[4]; /**< Reserved for future fields */
