diff mbox series

[v8,1/9] ethdev: introduce representor type

Message ID 1614868228-13685-2-git-send-email-xuemingl@nvidia.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series ethdev: support SubFunction representor | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Xueming Li March 4, 2021, 2:30 p.m. UTC
To support more representor type, this patch introduces representor type
enum. The enum is subject to be extended to support new representor in
patches upcoming.

For each devarg structure, only one type supported.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
---
 drivers/net/bnxt/bnxt_ethdev.c     |  7 +++++++
 drivers/net/enic/enic_ethdev.c     |  6 ++++++
 drivers/net/i40e/i40e_ethdev.c     |  7 +++++++
 drivers/net/ixgbe/ixgbe_ethdev.c   |  7 +++++++
 drivers/net/mlx5/linux/mlx5_os.c   | 11 +++++++++++
 lib/librte_ethdev/ethdev_driver.h  |  7 ++++++-
 lib/librte_ethdev/ethdev_private.c |  5 +++++
 lib/librte_ethdev/rte_ethdev.h     |  8 ++++++++
 8 files changed, 57 insertions(+), 1 deletion(-)

Comments

Ferruh Yigit March 8, 2021, 2:35 p.m. UTC | #1
On 3/4/2021 2:30 PM, Xueming Li wrote:
> To support more representor type, this patch introduces representor type
> enum. The enum is subject to be extended to support new representor in
> patches upcoming.
> 
> For each devarg structure, only one type supported.
> 
> Signed-off-by: Xueming Li <xuemingl@nvidia.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Acked-by: Thomas Monjalon <thomas@monjalon.net>
> Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
> Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
> Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
> ---
>   drivers/net/bnxt/bnxt_ethdev.c     |  7 +++++++
>   drivers/net/enic/enic_ethdev.c     |  6 ++++++
>   drivers/net/i40e/i40e_ethdev.c     |  7 +++++++
>   drivers/net/ixgbe/ixgbe_ethdev.c   |  7 +++++++
>   drivers/net/mlx5/linux/mlx5_os.c   | 11 +++++++++++
>   lib/librte_ethdev/ethdev_driver.h  |  7 ++++++-
>   lib/librte_ethdev/ethdev_private.c |  5 +++++
>   lib/librte_ethdev/rte_ethdev.h     |  8 ++++++++
>   8 files changed, 57 insertions(+), 1 deletion(-)

Hi Xueming,

There are a few instance of 'rte_eth_devargs_parse()' usages in the drivers, 
they may be added after you started this work.
Can you please rebase on latest head for it?
diff mbox series

Patch

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 9824cdb6d8..55110ee984 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -5646,6 +5646,13 @@  static int bnxt_rep_port_probe(struct rte_pci_device *pci_dev,
 	int i, ret = 0;
 	struct rte_kvargs *kvlist = NULL;
 
+	if (eth_da->type == RTE_ETH_REPRESENTOR_NONE)
+		return 0;
+	if (eth_da->type != RTE_ETH_REPRESENTOR_VF) {
+		PMD_DRV_LOG(ERR, "unsupported representor type %d\n",
+			    eth_da->type);
+		return -ENOTSUP;
+	}
 	num_rep = eth_da->nb_representor_ports;
 	if (num_rep > BNXT_MAX_VF_REPS) {
 		PMD_DRV_LOG(ERR, "nb_representor_ports = %d > %d MAX VF REPS\n",
diff --git a/drivers/net/enic/enic_ethdev.c b/drivers/net/enic/enic_ethdev.c
index b3f441c8f7..def669f411 100644
--- a/drivers/net/enic/enic_ethdev.c
+++ b/drivers/net/enic/enic_ethdev.c
@@ -1312,6 +1312,12 @@  static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 		if (retval)
 			return retval;
 	}
+	if (eth_da.nb_representor_ports > 0 &&
+	    eth_da.type != RTE_ETH_REPRESENTOR_VF) {
+		ENICPMD_LOG(ERR, "unsupported representor type: %s\n",
+			    pci_dev->device.devargs->args);
+		return -ENOTSUP;
+	}
 	retval = rte_eth_dev_create(&pci_dev->device, pci_dev->device.name,
 		sizeof(struct enic),
 		eth_dev_pci_specific_init, pci_dev,
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index d7cd049891..9b86bcdc69 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -639,6 +639,13 @@  eth_i40e_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 			return retval;
 	}
 
+	if (eth_da.nb_representor_ports > 0 &&
+	    eth_da.type != RTE_ETH_REPRESENTOR_VF) {
+		PMD_DRV_LOG(ERR, "unsupported representor type: %s\n",
+			    pci_dev->device.devargs->args);
+		return -ENOTSUP;
+	}
+
 	retval = rte_eth_dev_create(&pci_dev->device, pci_dev->device.name,
 		sizeof(struct i40e_adapter),
 		eth_dev_pci_specific_init, pci_dev,
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 761a0f26bb..8a9a21e7c2 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1718,6 +1718,13 @@  eth_ixgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 	} else
 		memset(&eth_da, 0, sizeof(eth_da));
 
+	if (eth_da.nb_representor_ports > 0 &&
+	    eth_da.type != RTE_ETH_REPRESENTOR_VF) {
+		PMD_DRV_LOG(ERR, "unsupported representor type: %s\n",
+			    pci_dev->device.devargs->args);
+		return -ENOTSUP;
+	}
+
 	retval = rte_eth_dev_create(&pci_dev->device, pci_dev->device.name,
 		sizeof(struct ixgbe_adapter),
 		eth_dev_pci_specific_init, pci_dev,
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 81eb2e4b05..92fa178b46 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -751,6 +751,17 @@  mlx5_dev_spawn(struct rte_device *dpdk_dev,
 				strerror(rte_errno));
 			return NULL;
 		}
+		if (eth_da.type == RTE_ETH_REPRESENTOR_NONE) {
+			/* Representor not specified. */
+			rte_errno = EBUSY;
+			return NULL;
+		}
+		if (eth_da.type != RTE_ETH_REPRESENTOR_VF) {
+			rte_errno = ENOTSUP;
+			DRV_LOG(ERR, "unsupported representor type: %s",
+				dpdk_dev->devargs->args);
+			return NULL;
+		}
 		for (i = 0; i < eth_da.nb_representor_ports; ++i)
 			if (eth_da.representor_ports[i] ==
 			    (uint16_t)switch_info->port_name)
diff --git a/lib/librte_ethdev/ethdev_driver.h b/lib/librte_ethdev/ethdev_driver.h
index 57fdedaa1a..d68b8401e7 100644
--- a/lib/librte_ethdev/ethdev_driver.h
+++ b/lib/librte_ethdev/ethdev_driver.h
@@ -1216,7 +1216,11 @@  __rte_internal
 int
 rte_eth_switch_domain_free(uint16_t domain_id);
 
-/** Generic Ethernet device arguments  */
+/**
+ * Generic Ethernet device arguments
+ *
+ * One type of representor each structure.
+ */
 struct rte_eth_devargs {
 	uint16_t ports[RTE_MAX_ETHPORTS];
 	/** port/s number to enable on a multi-port single function */
@@ -1226,6 +1230,7 @@  struct rte_eth_devargs {
 	/** representor port/s identifier to enable on device */
 	uint16_t nb_representor_ports;
 	/** number of ports in representor port field */
+	enum rte_eth_representor_type type; /* type of representor */
 };
 
 /**
diff --git a/lib/librte_ethdev/ethdev_private.c b/lib/librte_ethdev/ethdev_private.c
index 5960c75cc5..2d51e3857a 100644
--- a/lib/librte_ethdev/ethdev_private.c
+++ b/lib/librte_ethdev/ethdev_private.c
@@ -111,11 +111,16 @@  rte_eth_devargs_process_range(char *str, uint16_t *list, uint16_t *len_list,
 	return 0;
 }
 
+/*
+ * representor format:
+ *   #: range or single number of VF representor
+ */
 int
 rte_eth_devargs_parse_representor_ports(char *str, void *data)
 {
 	struct rte_eth_devargs *eth_da = data;
 
+	eth_da->type = RTE_ETH_REPRESENTOR_VF;
 	return rte_eth_devargs_process_range(str, eth_da->representor_ports,
 		&eth_da->nb_representor_ports, RTE_MAX_ETHPORTS);
 }
diff --git a/lib/librte_ethdev/rte_ethdev.h b/lib/librte_ethdev/rte_ethdev.h
index 059a061072..1f378958ca 100644
--- a/lib/librte_ethdev/rte_ethdev.h
+++ b/lib/librte_ethdev/rte_ethdev.h
@@ -1506,6 +1506,14 @@  struct rte_eth_rxseg_capa {
  * Ethernet device information
  */
 
+/**
+ * Ethernet device representor port type.
+ */
+enum rte_eth_representor_type {
+	RTE_ETH_REPRESENTOR_NONE, /**< not a representor. */
+	RTE_ETH_REPRESENTOR_VF,   /**< representor of Virtual Function. */
+};
+
 /**
  * A structure used to retrieve the contextual information of
  * an Ethernet device, such as the controlling driver of the