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-rw-r--r--src/plugins/dpdk/device/common.c77
-rw-r--r--src/plugins/dpdk/device/device.c20
-rw-r--r--src/plugins/dpdk/device/dpdk.h25
-rw-r--r--src/plugins/dpdk/device/init.c6
4 files changed, 116 insertions, 12 deletions
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index e9b033ec1af..a837714e75b 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -16,6 +16,8 @@
#include <vnet/vnet.h>
#include <vppinfra/vec.h>
#include <vppinfra/format.h>
+#include <vppinfra/file.h>
+#include <vlib/unix/unix.h>
#include <assert.h>
#include <vnet/ip/ip.h>
@@ -160,6 +162,79 @@ error:
sw->flags |= VNET_SW_INTERFACE_FLAG_ERROR;
}
+static clib_error_t *
+dpdk_rx_read_ready (clib_file_t *uf)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ dpdk_main_t *dm = &dpdk_main;
+ u32 qidx = uf->private_data;
+ vnet_hw_if_rx_queue_t *rxq = vnet_hw_if_get_rx_queue (vnm, qidx);
+ dpdk_device_t *xd = vec_elt_at_index (dm->devices, rxq->dev_instance);
+
+ u64 b;
+ CLIB_UNUSED (ssize_t size) = read (uf->file_descriptor, &b, sizeof (b));
+ if (rxq->mode != VNET_HW_IF_RX_MODE_POLLING)
+ {
+ vnet_hw_if_rx_queue_set_int_pending (vnm, uf->private_data);
+ rte_eth_dev_rx_intr_enable (xd->port_id, rxq->queue_id);
+ }
+
+ return 0;
+}
+
+static void
+dpdk_setup_interrupts (dpdk_device_t *xd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
+ if (!hi)
+ return;
+
+ if (!xd->port_conf.intr_conf.rxq)
+ return;
+
+ /* Probe for interrupt support */
+ if (rte_eth_dev_rx_intr_enable (xd->port_id, 0))
+ {
+ dpdk_log_info ("probe for interrupt mode for device %U. Failed.\n",
+ format_dpdk_device_name, xd->port_id);
+ }
+ else
+ {
+ xd->flags |= DPDK_DEVICE_FLAG_INT_SUPPORTED;
+ rte_eth_dev_rx_intr_disable (xd->port_id, 0);
+ dpdk_log_info ("Probe for interrupt mode for device %U. Success.\n",
+ format_dpdk_device_name, xd->port_id);
+ }
+
+ if (xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED)
+ {
+ hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
+ for (int q = 0; q < xd->rx_q_used; q++)
+ {
+ dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
+ clib_file_t f = { 0 };
+ rxq->efd = rte_eth_dev_rx_intr_ctl_q_get_fd (xd->port_id, q);
+ if (rxq->efd < 0)
+ {
+ xd->flags &= ~DPDK_DEVICE_FLAG_INT_SUPPORTED;
+ hi->flags &= ~VNET_HW_INTERFACE_FLAG_SUPPORTS_INT_MODE;
+ break;
+ }
+ f.read_function = dpdk_rx_read_ready;
+ f.flags = UNIX_FILE_EVENT_EDGE_TRIGGERED;
+ f.file_descriptor = rxq->efd;
+ f.private_data = rxq->queue_index;
+ f.description =
+ format (0, "%U queue %u", format_dpdk_device_name, xd->port_id, q);
+ rxq->clib_file_index = clib_file_add (&file_main, &f);
+ vnet_hw_if_set_rx_queue_file_index (vnm, rxq->queue_index,
+ rxq->clib_file_index);
+ }
+ }
+ vnet_hw_if_update_runtime_data (vnm, xd->hw_if_index);
+}
+
void
dpdk_device_start (dpdk_device_t * xd)
{
@@ -176,6 +251,8 @@ dpdk_device_start (dpdk_device_t * xd)
return;
}
+ dpdk_setup_interrupts (xd);
+
if (xd->default_mac_address)
rv = rte_eth_dev_default_mac_addr_set (xd->port_id,
(void *) xd->default_mac_address);
diff --git a/src/plugins/dpdk/device/device.c b/src/plugins/dpdk/device/device.c
index 6466b443633..95678e9b0e2 100644
--- a/src/plugins/dpdk/device/device.c
+++ b/src/plugins/dpdk/device/device.c
@@ -694,6 +694,25 @@ done:
return err;
}
+static clib_error_t *
+dpdk_interface_rx_mode_change (vnet_main_t *vnm, u32 hw_if_index, u32 qid,
+ vnet_hw_if_rx_mode mode)
+{
+ dpdk_main_t *xm = &dpdk_main;
+ vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
+ dpdk_device_t *xd = vec_elt_at_index (xm->devices, hw->dev_instance);
+ int rv = 0;
+ if (!(xd->flags & DPDK_DEVICE_FLAG_INT_SUPPORTED))
+ return clib_error_return (0, "unsupported op (is the interface up?)", rv);
+ if (mode == VNET_HW_IF_RX_MODE_POLLING)
+ rv = rte_eth_dev_rx_intr_disable (xd->port_id, qid);
+ else
+ rv = rte_eth_dev_rx_intr_enable (xd->port_id, qid);
+ if (rv)
+ return clib_error_return (0, "dpdk_interface_rx_mode_change err %d", rv);
+ return 0;
+}
+
/* *INDENT-OFF* */
VNET_DEVICE_CLASS (dpdk_device_class) = {
.name = "dpdk",
@@ -711,6 +730,7 @@ VNET_DEVICE_CLASS (dpdk_device_class) = {
.format_flow = format_dpdk_flow,
.flow_ops_function = dpdk_flow_ops_fn,
.set_rss_queues_function = dpdk_interface_set_rss_queues,
+ .rx_mode_change_function = dpdk_interface_rx_mode_change,
};
/* *INDENT-ON* */
diff --git a/src/plugins/dpdk/device/dpdk.h b/src/plugins/dpdk/device/dpdk.h
index be8c47b5128..e63b2b7c56b 100644
--- a/src/plugins/dpdk/device/dpdk.h
+++ b/src/plugins/dpdk/device/dpdk.h
@@ -128,17 +128,18 @@ typedef enum
typedef uint16_t dpdk_portid_t;
-#define foreach_dpdk_device_flags \
- _( 0, ADMIN_UP, "admin-up") \
- _( 1, PROMISC, "promisc") \
- _( 2, PMD, "pmd") \
- _( 3, PMD_INIT_FAIL, "pmd-init-fail") \
- _( 4, MAYBE_MULTISEG, "maybe-multiseg") \
- _( 5, HAVE_SUBIF, "subif") \
- _( 9, TX_OFFLOAD, "tx-offload") \
- _(10, INTEL_PHDR_CKSUM, "intel-phdr-cksum") \
- _(11, RX_FLOW_OFFLOAD, "rx-flow-offload") \
- _(12, RX_IP4_CKSUM, "rx-ip4-cksum")
+#define foreach_dpdk_device_flags \
+ _ (0, ADMIN_UP, "admin-up") \
+ _ (1, PROMISC, "promisc") \
+ _ (2, PMD, "pmd") \
+ _ (3, PMD_INIT_FAIL, "pmd-init-fail") \
+ _ (4, MAYBE_MULTISEG, "maybe-multiseg") \
+ _ (5, HAVE_SUBIF, "subif") \
+ _ (9, TX_OFFLOAD, "tx-offload") \
+ _ (10, INTEL_PHDR_CKSUM, "intel-phdr-cksum") \
+ _ (11, RX_FLOW_OFFLOAD, "rx-flow-offload") \
+ _ (12, RX_IP4_CKSUM, "rx-ip4-cksum") \
+ _ (13, INT_SUPPORTED, "int-supported")
enum
{
@@ -166,6 +167,8 @@ typedef struct
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
u8 buffer_pool_index;
u32 queue_index;
+ int efd;
+ uword clib_file_index;
} dpdk_rx_queue_t;
typedef struct
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c
index 2874167665f..78374af4b0f 100644
--- a/src/plugins/dpdk/device/init.c
+++ b/src/plugins/dpdk/device/init.c
@@ -470,6 +470,7 @@ dpdk_lib_init (dpdk_main_t * dm)
DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
}
+ xd->port_conf.intr_conf.rxq = 1;
break;
case VNET_DPDK_PMD_CXGBE:
@@ -493,6 +494,7 @@ dpdk_lib_init (dpdk_main_t * dm)
DPDK_DEVICE_FLAG_TX_OFFLOAD |
DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
}
+ /*xd->port_conf.intr_conf.rxq = 1;*/
break;
/* iAVF */
@@ -512,7 +514,8 @@ dpdk_lib_init (dpdk_main_t * dm)
DPDK_DEVICE_FLAG_TX_OFFLOAD |
DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
}
- break;
+ xd->port_conf.intr_conf.rxq = 1;
+ break;
case VNET_DPDK_PMD_THUNDERX:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
@@ -528,6 +531,7 @@ dpdk_lib_init (dpdk_main_t * dm)
case VNET_DPDK_PMD_ENA:
xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
+ xd->port_conf.intr_conf.rxq = 1;
break;
case VNET_DPDK_PMD_DPAA2: