diff options
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/devices/dpdk/dpdk.h | 1 | ||||
| -rw-r--r-- | vnet/vnet/devices/dpdk/init.c | 76 |
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; } |