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authorIvan Boule <ivan.boule@6wind.com>2013-04-16 14:42:33 +0200
committerThomas Monjalon <thomas.monjalon@6wind.com>2013-07-25 16:08:01 +0200
commit7589edb5e82ca585fca21303982f345990b5d78e (patch)
tree05b0ad3e5434a70a301643f1c5f5d81c3e37beb1
parentb33d322d781f544d3eb258e1f4b3433ad45cacb4 (diff)
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ethdev: add support for device offload capabilities
1) Make device RX and TX offload capabilities to be returned in the rte_eth_dev_info data structure by the function rte_eth_dev_info_get The following initial set of RX offload capabilities are defined: - VLAN header stripping - IPv4 header checksum check - UDP checksum check - TCP checksum check - TCP large receive offload (LRO) The following initial set of TX offload capabilities are defined: - VLAN header insertion - IPv4 header checksum computation - UDP checksum computation - TCP checksum computation - SCTP checksum computation - TCP segmentation offload (Transmit Segmentation Offload) - UDP segmentation offload 2) Update the eth_dev_infos_get() function of the igb and ixgbe PMDs to return the offload capabilities which are supported by the device and that are effectively managed by the driver. Signed-off-by: Ivan Boule <ivan.boule@6wind.com> Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
-rw-r--r--lib/librte_ether/rte_ethdev.c3
-rw-r--r--lib/librte_ether/rte_ethdev.h35
-rw-r--r--lib/librte_pmd_e1000/igb_ethdev.c11
-rw-r--r--lib/librte_pmd_ixgbe/ixgbe_ethdev.c11
4 files changed, 54 insertions, 6 deletions
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 019ca2b..cb3d424 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -949,6 +949,9 @@ rte_eth_dev_info_get(uint8_t port_id, struct rte_eth_dev_info *dev_info)
}
dev = &rte_eth_devices[port_id];
+ /* Default device offload capabilities to zero */
+ dev_info->rx_offload_capa = 0;
+ dev_info->tx_offload_capa = 0;
FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
(*dev->dev_ops->dev_infos_get)(dev, dev_info);
dev_info->pci_dev = dev->pci_dev;
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index d36089c..69814bc 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -654,14 +654,37 @@ struct rte_eth_conf {
* an Ethernet device, such as the controlling driver of the device,
* its PCI context, etc...
*/
+
+/**
+ * RX offload capabilities of a device.
+ */
+#define DEV_RX_OFFLOAD_VLAN_STRIP 0x00000001
+#define DEV_RX_OFFLOAD_IPV4_CKSUM 0x00000002
+#define DEV_RX_OFFLOAD_UDP_CKSUM 0x00000004
+#define DEV_RX_OFFLOAD_TCP_CKSUM 0x00000008
+#define DEV_RX_OFFLOAD_TCP_LRO 0x00000010
+
+/**
+ * TX offload capabilities of a device.
+ */
+#define DEV_TX_OFFLOAD_VLAN_INSERT 0x00000001
+#define DEV_TX_OFFLOAD_IPV4_CKSUM 0x00000002
+#define DEV_TX_OFFLOAD_UDP_CKSUM 0x00000004
+#define DEV_TX_OFFLOAD_TCP_CKSUM 0x00000008
+#define DEV_TX_OFFLOAD_SCTP_CKSUM 0x00000010
+#define DEV_TX_OFFLOAD_TCP_TSO 0x00000020
+#define DEV_TX_OFFLOAD_UDP_TSO 0x00000040
+
struct rte_eth_dev_info {
struct rte_pci_device *pci_dev; /**< Device PCI information. */
- const char *driver_name; /**< Device Driver name. */
- uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
- uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
- uint16_t max_rx_queues; /**< Maximum number of RX queues. */
- uint16_t max_tx_queues; /**< Maximum number of TX queues. */
- uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
+ const char *driver_name; /**< Device Driver name. */
+ uint32_t min_rx_bufsize; /**< Minimum size of RX buffer. */
+ uint32_t max_rx_pktlen; /**< Maximum configurable length of RX pkt. */
+ uint16_t max_rx_queues; /**< Maximum number of RX queues. */
+ uint16_t max_tx_queues; /**< Maximum number of TX queues. */
+ uint32_t max_mac_addrs; /**< Maximum number of MAC addresses. */
+ uint32_t rx_offload_capa; /**< Device RX offload capabilities. */
+ uint32_t tx_offload_capa; /**< Device TX offload capabilities. */
};
struct rte_eth_dev;
diff --git a/lib/librte_pmd_e1000/igb_ethdev.c b/lib/librte_pmd_e1000/igb_ethdev.c
index 93d7483..9936583 100644
--- a/lib/librte_pmd_e1000/igb_ethdev.c
+++ b/lib/librte_pmd_e1000/igb_ethdev.c
@@ -1013,6 +1013,17 @@ eth_igb_infos_get(struct rte_eth_dev *dev,
dev_info->min_rx_bufsize = 256; /* See BSIZE field of RCTL register. */
dev_info->max_rx_pktlen = 0x3FFF; /* See RLPML register. */
dev_info->max_mac_addrs = hw->mac.rar_entry_count;
+ dev_info->rx_offload_capa =
+ DEV_RX_OFFLOAD_VLAN_STRIP |
+ DEV_RX_OFFLOAD_IPV4_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM |
+ DEV_RX_OFFLOAD_TCP_CKSUM;
+ dev_info->tx_offload_capa =
+ DEV_TX_OFFLOAD_VLAN_INSERT |
+ DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM |
+ DEV_TX_OFFLOAD_SCTP_CKSUM;
switch (hw->mac.type) {
case e1000_82575:
diff --git a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
index a17cd49..1f2d9da 100644
--- a/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
+++ b/lib/librte_pmd_ixgbe/ixgbe_ethdev.c
@@ -1511,6 +1511,17 @@ ixgbe_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
dev_info->min_rx_bufsize = 1024; /* cf BSIZEPACKET in SRRCTL register */
dev_info->max_rx_pktlen = 15872; /* includes CRC, cf MAXFRS register */
dev_info->max_mac_addrs = hw->mac.num_rar_entries;
+ dev_info->rx_offload_capa =
+ DEV_RX_OFFLOAD_VLAN_STRIP |
+ DEV_RX_OFFLOAD_IPV4_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM |
+ DEV_RX_OFFLOAD_TCP_CKSUM;
+ dev_info->tx_offload_capa =
+ DEV_TX_OFFLOAD_VLAN_INSERT |
+ DEV_TX_OFFLOAD_IPV4_CKSUM |
+ DEV_TX_OFFLOAD_UDP_CKSUM |
+ DEV_TX_OFFLOAD_TCP_CKSUM |
+ DEV_TX_OFFLOAD_SCTP_CKSUM;
}
/* return 0 means link status changed, -1 means not changed */