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From: Hemant Agrawal <hemant.agrawal@nxp.com>
To: Stephen Hemminger <stephen@networkplumber.org>, "dev@dpdk.org"
<dev@dpdk.org>
CC: Maryam Tahhan <maryam.tahhan@intel.com>, Reshma Pattan
<reshma.pattan@intel.com>
Thread-Topic: [dpdk-dev] [PATCH v2 6/7] app/proc-info: dump rx and tx
descriptor info
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Date: Mon, 13 Jul 2020 12:08:56 +0000
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Subject: Re: [dpdk-dev] [PATCH v2 6/7] app/proc-info: dump rx and tx
descriptor info
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-----Original Message-----
From: dev <dev-bounces@dpdk.org> On Behalf Of Stephen Hemminger
Sent: Thursday, May 7, 2020 1:28 AM
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>; Maryam Tahhan <maryam.t=
ahhan@intel.com>; Reshma Pattan <reshma.pattan@intel.com>
Subject: [dpdk-dev] [PATCH v2 6/7] app/proc-info: dump rx and tx descriptor=
info
Many drivers will report per queue info for both rx and tx as well as how m=
any descriptors are in use.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
app/proc-info/main.c | 79 ++++++++++++++++++++++++++++++++++++--------
1 file changed, 66 insertions(+), 13 deletions(-)
diff --git a/app/proc-info/main.c b/app/proc-info/main.c index 804c0fd63b3e=
..00e06c986e27 100644
--- a/app/proc-info/main.c
+++ b/app/proc-info/main.c
@@ -654,6 +654,25 @@ metrics_display(int port_id)
rte_free(names);
}
=20
+/* This could be replaced by an ethdev hook in future */ static int=20
+eth_tx_queue_available(uint16_t port_id, uint16_t queue_id, uint16_t n)=20
+{
+ uint16_t offset;
+ int count =3D 0;
+
+ for (offset =3D 0; offset < n; offset++) {
+ int status;
+
+ status =3D rte_eth_tx_descriptor_status(port_id, queue_id, offset);
+ if (status < 0)
+ return status;
+ if (status =3D=3D RTE_ETH_TX_DESC_DONE)
+ ++count;
+ }
+ return count;
+}
+
static void
show_port(void)
{
@@ -667,7 +686,6 @@ show_port(void)
uint16_t mtu =3D 0;
struct rte_eth_link link;
struct rte_eth_dev_info dev_info;
- struct rte_eth_rxq_info queue_info;
struct rte_eth_rss_conf rss_conf;
struct rte_eth_fc_conf fc_conf;
struct rte_ether_addr mac;
@@ -739,6 +757,7 @@ show_port(void)
ret =3D rte_eth_macaddr_get(i, &mac);
if (ret =3D=3D 0) {
char ebuf[RTE_ETHER_ADDR_FMT_SIZE];
+
rte_ether_format_addr(ebuf, sizeof(ebuf), &mac);
printf("\t -- mac %s\n", ebuf);
}
@@ -750,20 +769,54 @@ show_port(void)
if (ret =3D=3D 0)
printf("\t -- mtu (%d)\n", mtu);
=20
- printf(" - queue\n");
for (j =3D 0; j < dev_info.nb_rx_queues; j++) {
+ struct rte_eth_rxq_info queue_info;
+ int count;
+
ret =3D rte_eth_rx_queue_info_get(i, j, &queue_info);
- if (ret =3D=3D 0) {
- printf("\t -- queue %d rx scatter %d"
- " descriptors %d"
- " offloads 0x%"PRIx64
- " mempool socket %d\n",
- j,
- queue_info.scattered_rx,
- queue_info.nb_desc,
- queue_info.conf.offloads,
- queue_info.mp->socket_id);
- }
+ if (ret !=3D 0)
+ break;
+
+ if (j =3D=3D 0)
+ printf(" - rx queue\n");
+
+ printf("\t -- %d descriptors ", j);
+ count =3D rte_eth_rx_queue_count(i, j);
+ if (count >=3D 0)
+ printf("%d/", count);
+ printf("%d", queue_info.nb_desc);
+
+ if (queue_info.scattered_rx)
+ printf(" scattered_rx");
+
+ printf(" offloads %#"PRIx64" socket %d\n",
+ queue_info.conf.offloads,
+ queue_info.mp->socket_id);
[Hemant] will you please also add printf("\t -- mempool name: %s\n", (que=
ue_info.mp =3D=3D NULL) ? "NULL" : queue_info.mp->name);
+ }
+
+ for (j =3D 0; j < dev_info.nb_tx_queues; j++) {
+ struct rte_eth_txq_info queue_info;
+ int count;
+
+ ret =3D rte_eth_tx_queue_info_get(i, j, &queue_info);
+ if (ret !=3D 0)
+ break;
+
+ if (j =3D=3D 0)
+ printf(" - tx queue\n");
+
+ printf("\t -- %d descriptors ", j);
+
+ count =3D eth_tx_queue_available(i, j, queue_info.nb_desc);
+ if (count >=3D 0)
+ printf("%d/", count);
+ printf("%d", queue_info.nb_desc);
+
+ if (queue_info.conf.tx_deferred_start)
+ printf(" deferred_start");
+
+ printf(" offloads %#"PRIx64"\n",
+ queue_info.conf.offloads);
}
=20
ret =3D rte_eth_dev_rss_hash_conf_get(i, &rss_conf);
--
2.20.1