For the multiple hardware ports connect to a single DPDK port (mhpsdp),
the previous patch introduces the new rte flow item to match the
phy affinity of the received packets.

This patch adds the tx_phy_affinity setting in Tx queue API, the affinity
value reflects packets be sent to which hardware port.
Value 0 is no affinity and traffic will be routed between different
physical ports, if 0 is disabled then try to match on phy_affinity 0
will result in an error.

Adds the new tx_phy_affinity field into the padding hole of rte_eth_txconf
structure, the size of rte_eth_txconf keeps the same. Adds a suppress
type for structure change in the ABI check file.

This patch adds the testpmd command line:
testpmd> port config (port_id) txq (queue_id) phy_affinity (value)

For example, there're two hardware ports 0 and 1 connected to
a single DPDK port (port id 0), and phy_affinity 1 stood for
hardware port 0 and phy_affinity 2 stood for hardware port 1,
used the below command to config tx phy affinity for per Tx Queue:
        port config 0 txq 0 phy_affinity 1
        port config 0 txq 1 phy_affinity 1
        port config 0 txq 2 phy_affinity 2
        port config 0 txq 3 phy_affinity 2

These commands config the TxQ index 0 and TxQ index 1 with phy affinity 1,
uses TxQ 0 or TxQ 1 send packets, these packets will be sent from the
hardware port 0, and similar with hardware port 1 if sending packets
with TxQ 2 or TxQ 3.

Signed-off-by: Jiawei Wang <jiaw...@nvidia.com>
---
 app/test-pmd/cmdline.c                      | 84 +++++++++++++++++++++
 devtools/libabigail.abignore                |  5 ++
 doc/guides/testpmd_app_ug/testpmd_funcs.rst | 13 ++++
 lib/ethdev/rte_ethdev.h                     |  7 ++
 4 files changed, 109 insertions(+)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index b32dc8bfd4..768f35cb02 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -764,6 +764,10 @@ static void cmd_help_long_parsed(void *parsed_result,
 
                        "port cleanup (port_id) txq (queue_id) (free_cnt)\n"
                        "    Cleanup txq mbufs for a specific Tx queue\n\n"
+
+                       "port config (port_id) txq (queue_id) phy_affinity 
(value)\n"
+                       "    Set the physical affinity value "
+                       "on a specific Tx queue\n\n"
                );
        }
 
@@ -12621,6 +12625,85 @@ static cmdline_parse_inst_t 
cmd_show_port_flow_transfer_proxy = {
        }
 };
 
+/* *** configure port txq phy_affinity value *** */
+struct cmd_config_tx_phy_affinity {
+       cmdline_fixed_string_t port;
+       cmdline_fixed_string_t config;
+       portid_t portid;
+       cmdline_fixed_string_t txq;
+       uint16_t qid;
+       cmdline_fixed_string_t phy_affinity;
+       uint16_t value;
+};
+
+static void
+cmd_config_tx_phy_affinity_parsed(void *parsed_result,
+                                 __rte_unused struct cmdline *cl,
+                                 __rte_unused void *data)
+{
+       struct cmd_config_tx_phy_affinity *res = parsed_result;
+       struct rte_port *port;
+
+       if (port_id_is_invalid(res->portid, ENABLED_WARN))
+               return;
+
+       if (res->portid == (portid_t)RTE_PORT_ALL) {
+               printf("Invalid port id\n");
+               return;
+       }
+
+       port = &ports[res->portid];
+
+       if (strcmp(res->txq, "txq")) {
+               printf("Unknown parameter\n");
+               return;
+       }
+       if (tx_queue_id_is_invalid(res->qid))
+               return;
+
+       port->txq[res->qid].conf.tx_phy_affinity = res->value;
+
+       cmd_reconfig_device_queue(res->portid, 0, 1);
+}
+
+cmdline_parse_token_string_t cmd_config_tx_phy_affinity_port =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                                port, "port");
+cmdline_parse_token_string_t cmd_config_tx_phy_affinity_config =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                                config, "config");
+cmdline_parse_token_num_t cmd_config_tx_phy_affinity_portid =
+       TOKEN_NUM_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                                portid, RTE_UINT16);
+cmdline_parse_token_string_t cmd_config_tx_phy_affinity_txq =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                                txq, "txq");
+cmdline_parse_token_num_t cmd_config_tx_phy_affinity_qid =
+       TOKEN_NUM_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                             qid, RTE_UINT16);
+cmdline_parse_token_string_t cmd_config_tx_phy_affinity_hwport =
+       TOKEN_STRING_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                                phy_affinity, "phy_affinity");
+cmdline_parse_token_num_t cmd_config_tx_phy_affinity_value =
+       TOKEN_NUM_INITIALIZER(struct cmd_config_tx_phy_affinity,
+                             value, RTE_UINT16);
+
+static cmdline_parse_inst_t cmd_config_tx_phy_affinity = {
+       .f = cmd_config_tx_phy_affinity_parsed,
+       .data = (void *)0,
+       .help_str = "port config <port_id> txq <queue_id> phy_affinity <value>",
+       .tokens = {
+               (void *)&cmd_config_tx_phy_affinity_port,
+               (void *)&cmd_config_tx_phy_affinity_config,
+               (void *)&cmd_config_tx_phy_affinity_portid,
+               (void *)&cmd_config_tx_phy_affinity_txq,
+               (void *)&cmd_config_tx_phy_affinity_qid,
+               (void *)&cmd_config_tx_phy_affinity_hwport,
+               (void *)&cmd_config_tx_phy_affinity_value,
+               NULL,
+       },
+};
+
 /* 
********************************************************************************
 */
 
 /* list of instructions */
@@ -12851,6 +12934,7 @@ static cmdline_parse_ctx_t builtin_ctx[] = {
        (cmdline_parse_inst_t *)&cmd_show_capability,
        (cmdline_parse_inst_t *)&cmd_set_flex_is_pattern,
        (cmdline_parse_inst_t *)&cmd_set_flex_spec_pattern,
+       (cmdline_parse_inst_t *)&cmd_config_tx_phy_affinity,
        NULL,
 };
 
diff --git a/devtools/libabigail.abignore b/devtools/libabigail.abignore
index 7a93de3ba1..cbbde4ef05 100644
--- a/devtools/libabigail.abignore
+++ b/devtools/libabigail.abignore
@@ -20,6 +20,11 @@
 [suppress_file]
         soname_regexp = ^librte_.*mlx.*glue\.
 
+; Ignore fields inserted in middle padding of rte_eth_txconf
+[suppress_type]
+        name = rte_eth_txconf
+        has_data_member_inserted_between = {offset_after(tx_deferred_start), 
offset_of(offloads)}
+
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; Experimental APIs exceptions ;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst 
b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 1853030e93..e9f20607a2 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -1605,6 +1605,19 @@ Enable or disable a per queue Tx offloading only on a 
specific Tx queue::
 
 This command should be run when the port is stopped, or else it will fail.
 
+config per queue Tx physical affinity
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Configure a per queue physical affinity value only on a specific Tx queue::
+
+   testpmd> port (port_id) txq (queue_id) phy_affinity (value)
+
+* ``phy_affinity``: reflects packet can be sent to which hardware port.
+                    uses it on multiple hardware ports connect to
+                    a single DPDK port (mhpsdp).
+
+This command should be run when the port is stopped, or else it will fail.
+
 Config VXLAN Encap outer layers
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index c129ca1eaf..b30467c192 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -1138,6 +1138,13 @@ struct rte_eth_txconf {
                                      less free descriptors than this value. */
 
        uint8_t tx_deferred_start; /**< Do not start queue with 
rte_eth_dev_start(). */
+       /**
+        * Physical affinity to be set.
+        * Value 0 is no affinity and traffic could be routed between different
+        * physical ports, if 0 is disabled then try to match on phy_affinity 0 
will
+        * result in an error.
+        */
+       uint8_t tx_phy_affinity;
        /**
         * Per-queue Tx offloads to be set  using RTE_ETH_TX_OFFLOAD_* flags.
         * Only offloads set on tx_queue_offload_capa or tx_offload_capa
-- 
2.18.1

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