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examples/ioat: add option to control maximum frame size

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Add command line option for setting the max frame size.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Kevin Laatz <kevin.laatz@intel.com>
Reviewed-by: Conor Walsh <conor.walsh@intel.com>
This commit is contained in:
Konstantin Ananyev 2021-10-26 13:14:27 +00:00 committed by Thomas Monjalon
parent 198db0c9e2
commit 8a256e97fb
2 changed files with 24 additions and 3 deletions
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4
doc/guides/sample_app_ug/ioat.rst
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@ -46,7 +46,7 @@ The application requires a number of command line options:
.. code-block:: console .. code-block:: console
./<build_dir>/examples/dpdk-ioat [EAL options] -- [-p MASK] [-q NQ] [-s RS] [-c <sw|hw>] ./<build_dir>/examples/dpdk-ioat [EAL options] -- [-p MASK] [-q NQ] [-s RS] [-c <sw|hw>]
[--[no-]mac-updating] [-b BS] [--[no-]mac-updating] [-b BS] [-f FS]
where, where,
@ -66,6 +66,8 @@ where,
* b BS: set the DMA batch size * b BS: set the DMA batch size
* f FS: set the max frame size
The application can be launched in various configurations depending on The application can be launched in various configurations depending on
provided parameters. The app can use up to 2 lcores: one of them receives provided parameters. The app can use up to 2 lcores: one of them receives
incoming traffic and makes a copy of each packet. The second lcore then incoming traffic and makes a copy of each packet. The second lcore then

23
examples/ioat/ioatfwd.c
View File

@ -25,6 +25,7 @@
#define CMD_LINE_OPT_COPY_TYPE "copy-type" #define CMD_LINE_OPT_COPY_TYPE "copy-type"
#define CMD_LINE_OPT_RING_SIZE "ring-size" #define CMD_LINE_OPT_RING_SIZE "ring-size"
#define CMD_LINE_OPT_BATCH_SIZE "dma-batch-size" #define CMD_LINE_OPT_BATCH_SIZE "dma-batch-size"
#define CMD_LINE_OPT_FRAME_SIZE "max-frame-size"
/* configurable number of RX/TX ring descriptors */ /* configurable number of RX/TX ring descriptors */
#define RX_DEFAULT_RINGSIZE 1024 #define RX_DEFAULT_RINGSIZE 1024
@ -104,6 +105,7 @@ static uint16_t nb_txd = TX_DEFAULT_RINGSIZE;
static volatile bool force_quit; static volatile bool force_quit;
static uint32_t ioat_batch_sz = MAX_PKT_BURST; static uint32_t ioat_batch_sz = MAX_PKT_BURST;
static uint32_t max_frame_size = RTE_ETHER_MAX_LEN;
/* ethernet addresses of ports */ /* ethernet addresses of ports */
static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS]; static struct rte_ether_addr ioat_ports_eth_addr[RTE_MAX_ETHPORTS];
@ -604,6 +606,7 @@ ioat_usage(const char *prgname)
{ {
printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n" printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
" -b --dma-batch-size: number of requests per DMA batch\n" " -b --dma-batch-size: number of requests per DMA batch\n"
" -f --max-frame-size: max frame size\n"
" -p --portmask: hexadecimal bitmask of ports to configure\n" " -p --portmask: hexadecimal bitmask of ports to configure\n"
" -q NQ: number of RX queues per port (default is 1)\n" " -q NQ: number of RX queues per port (default is 1)\n"
" --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n" " --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
@ -647,6 +650,7 @@ ioat_parse_args(int argc, char **argv, unsigned int nb_ports)
static const char short_options[] = static const char short_options[] =
"b:" /* dma batch size */ "b:" /* dma batch size */
"c:" /* copy type (sw|hw) */ "c:" /* copy type (sw|hw) */
"f:" /* max frame size */
"p:" /* portmask */ "p:" /* portmask */
"q:" /* number of RX queues per port */ "q:" /* number of RX queues per port */
"s:" /* ring size */ "s:" /* ring size */
@ -660,6 +664,7 @@ ioat_parse_args(int argc, char **argv, unsigned int nb_ports)
{CMD_LINE_OPT_COPY_TYPE, required_argument, NULL, 'c'}, {CMD_LINE_OPT_COPY_TYPE, required_argument, NULL, 'c'},
{CMD_LINE_OPT_RING_SIZE, required_argument, NULL, 's'}, {CMD_LINE_OPT_RING_SIZE, required_argument, NULL, 's'},
{CMD_LINE_OPT_BATCH_SIZE, required_argument, NULL, 'b'}, {CMD_LINE_OPT_BATCH_SIZE, required_argument, NULL, 'b'},
{CMD_LINE_OPT_FRAME_SIZE, required_argument, NULL, 'f'},
{NULL, 0, 0, 0} {NULL, 0, 0, 0}
}; };
@ -684,6 +689,15 @@ ioat_parse_args(int argc, char **argv, unsigned int nb_ports)
return -1; return -1;
} }
break; break;
case 'f':
max_frame_size = atoi(optarg);
if (max_frame_size > RTE_ETHER_MAX_JUMBO_FRAME_LEN) {
printf("Invalid max frame size, %s.\n", optarg);
ioat_usage(prgname);
return -1;
}
break;
/* portmask */ /* portmask */
case 'p': case 'p':
ioat_enabled_port_mask = ioat_parse_portmask(optarg); ioat_enabled_port_mask = ioat_parse_portmask(optarg);
@ -879,6 +893,9 @@ port_init(uint16_t portid, struct rte_mempool *mbuf_pool, uint16_t nb_queues)
struct rte_eth_dev_info dev_info; struct rte_eth_dev_info dev_info;
int ret, i; int ret, i;
if (max_frame_size > local_port_conf.rxmode.mtu)
local_port_conf.rxmode.mtu = max_frame_size;
/* Skip ports that are not enabled */ /* Skip ports that are not enabled */
if ((ioat_enabled_port_mask & (1 << portid)) == 0) { if ((ioat_enabled_port_mask & (1 << portid)) == 0) {
printf("Skipping disabled port %u\n", portid); printf("Skipping disabled port %u\n", portid);
@ -989,6 +1006,7 @@ main(int argc, char **argv)
uint16_t nb_ports, portid; uint16_t nb_ports, portid;
uint32_t i; uint32_t i;
unsigned int nb_mbufs; unsigned int nb_mbufs;
size_t sz;
/* Init EAL. 8< */ /* Init EAL. 8< */
ret = rte_eal_init(argc, argv); ret = rte_eal_init(argc, argv);
@ -1018,9 +1036,10 @@ main(int argc, char **argv)
MIN_POOL_SIZE); MIN_POOL_SIZE);
/* Create the mbuf pool */ /* Create the mbuf pool */
sz = max_frame_size + RTE_PKTMBUF_HEADROOM;
sz = RTE_MAX(sz, (size_t)RTE_MBUF_DEFAULT_BUF_SIZE);
ioat_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs, ioat_pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool", nb_mbufs,
MEMPOOL_CACHE_SIZE, 0, RTE_MBUF_DEFAULT_BUF_SIZE, MEMPOOL_CACHE_SIZE, 0, sz, rte_socket_id());
rte_socket_id());
if (ioat_pktmbuf_pool == NULL) if (ioat_pktmbuf_pool == NULL)
rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n"); rte_exit(EXIT_FAILURE, "Cannot init mbuf pool\n");
/* >8 End of allocates mempool to hold the mbufs. */ /* >8 End of allocates mempool to hold the mbufs. */