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-rw-r--r--vnet/vnet/devices/dpdk/dpdk.h1
-rw-r--r--vnet/vnet/devices/dpdk/init.c76
2 files changed, 54 insertions, 23 deletions
diff --git a/vnet/vnet/devices/dpdk/dpdk.h b/vnet/vnet/devices/dpdk/dpdk.h
index ded9d2db709..eb0a11f91a3 100644
--- a/vnet/vnet/devices/dpdk/dpdk.h
+++ b/vnet/vnet/devices/dpdk/dpdk.h
@@ -323,6 +323,7 @@ typedef struct {
#define _(x) uword x;
foreach_dpdk_device_config_item
#undef _
+ clib_bitmap_t * workers;
} dpdk_device_config_t;
typedef struct {
diff --git a/vnet/vnet/devices/dpdk/init.c b/vnet/vnet/devices/dpdk/init.c
index 398bd19e193..c685fb4170e 100644
--- a/vnet/vnet/devices/dpdk/init.c
+++ b/vnet/vnet/devices/dpdk/init.c
@@ -571,29 +571,44 @@ dpdk_lib_init (dpdk_main_t * dm)
dpdk_device_and_queue_t * dq;
int q;
- for (q = 0; q < xd->rx_q_used; q++)
- {
- int cpu = dm->input_cpu_first_index + next_cpu;
- unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
-
- /*
- * numa node for worker thread handling this queue
- * needed for taking buffers from the right mempool
- */
- vec_validate(xd->cpu_socket_id_by_queue, q);
- xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
-
- /*
- * construct vector of (device,queue) pairs for each worker thread
- */
- vec_add2(dm->devices_by_cpu[cpu], dq, 1);
- dq->device = xd->device_index;
- dq->queue_id = q;
-
- next_cpu++;
- if (next_cpu == dm->input_cpu_count)
- next_cpu = 0;
- }
+ if (devconf->workers)
+ {
+ int i;
+ q = 0;
+ clib_bitmap_foreach (i, devconf->workers, ({
+ int cpu = dm->input_cpu_first_index + i;
+ unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
+ vec_validate(xd->cpu_socket_id_by_queue, q);
+ xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
+ vec_add2(dm->devices_by_cpu[cpu], dq, 1);
+ dq->device = xd->device_index;
+ dq->queue_id = q++;
+ }));
+ }
+ else
+ for (q = 0; q < xd->rx_q_used; q++)
+ {
+ int cpu = dm->input_cpu_first_index + next_cpu;
+ unsigned lcore = vlib_worker_threads[cpu].dpdk_lcore_id;
+
+ /*
+ * numa node for worker thread handling this queue
+ * needed for taking buffers from the right mempool
+ */
+ vec_validate(xd->cpu_socket_id_by_queue, q);
+ xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
+
+ /*
+ * construct vector of (device,queue) pairs for each worker thread
+ */
+ vec_add2(dm->devices_by_cpu[cpu], dq, 1);
+ dq->device = xd->device_index;
+ dq->queue_id = q;
+
+ next_cpu++;
+ if (next_cpu == dm->input_cpu_count)
+ next_cpu = 0;
+ }
vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
CLIB_CACHE_LINE_BYTES);
@@ -873,6 +888,9 @@ dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr, unforma
;
else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
;
+ else if (unformat (input, "workers %U", unformat_bitmap_list,
+ &devconf->workers))
+ ;
else
{
error = clib_error_return (0, "unknown input `%U'",
@@ -880,6 +898,18 @@ dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr, unforma
break;
}
}
+
+ if (error)
+ return error;
+
+ if (devconf->workers && devconf->num_rx_queues == 0)
+ devconf->num_rx_queues = clib_bitmap_count_set_bits(devconf->workers);
+ else if (devconf->workers &&
+ clib_bitmap_count_set_bits(devconf->workers) != devconf->num_rx_queues)
+ error = clib_error_return (0, "%U: number of worker threadds must be "
+ "equal to number of rx queues",
+ format_vlib_pci_addr, &pci_addr);
+
return error;
}