Sorry，mq_mode is RTE_ETH_MQ_RX_RSS in rte_eth_conf.
call chain:
rte_eth_bond_create()->rte_eth_dev_configure()->rte_eth_bond_slave_add()->rte_eth_dev_start()
Consider this call chain, internals->rss_key_len is 0 in
bond_ethdev_configure() when we call rte_eth_dev_configure().
If internals->rss_key_len is 0, internals->rss_key can not be set properly.
Because memcpy in bond_ethdev_configure() use internals->rss_key_len(it is 0)
as copy size, and internals->rss_key will not be set in other functions.
---
e.g.:
bond_ethdev_configure(struct rte_eth_dev *dev)
{
const char *name = dev->device->name
struct bond_dev_private *internals = dev->data->dev_private
...
/*
* If RSS is enabled, fill table with default values and
* set key to the value specified in port RSS configuration.
* Fall back to default RSS key if the key is not specified
*/
if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {
struct rte_eth_rss_conf *rss_conf =
&dev->data->dev_conf.rx_adv_conf.rss_conf
if (rss_conf->rss_key != NULL) {
if (internals->rss_key_len > rss_conf->rss_key_len) {
RTE_BOND_LOG(ERR, "Invalid rss key length(%u)",
rss_conf->rss_key_len)
return -EINVAL
}
memcpy(internals->rss_key, rss_conf->rss_key,
internals->rss_key_len)
} else {
if (internals->rss_key_len > sizeof(default_rss_key)) {
RTE_BOND_LOG(ERR,
"There is no suitable default hash key")
return -EINVAL
}
memcpy(internals->rss_key, default_rss_key,
internals->rss_key_len)
}
----Origin----From："Min Hu (Connor)" <[email protected]>To："yuwenjun_yewu"
<[email protected]>,tangchengchang
<[email protected]>,"ferruh.yigit" <[email protected]>Cc: dev
<[email protected]>,stable <[email protected]>Date：2022-01-14 08:59:21Subject：Re:
[PATCH] net/bonding: fix RSS not work for bonding in DPDK21.11Hi,在 2022/1/12
15:29, 俞文俊_yewu 写道:> From 85c4ffffe32996fc262dd6f69d0ce272ae8e8350 Mon Sep 17
00:00:00 2001> > From: Yu Wenjun <[email protected]>> > Date:
Wed, 12 Jan 2022 15:01:10 +0800> > Subject: [PATCH] net/bonding: fix RSS not
work for bonding> > > RSS don39t work when upgrade to DPDK21.11.Cannot get your
meaning, Why RSS don39t work?As mq_mode is not RTE_ETH_MQ_RX_RSS in
rte_eth_conf, RSS is off.Please make it clearer, thanks.> > > e.g.:> >
examples/bond/main.c:> > conf:> > static struct rte_eth_conf port_conf = {> >
.rxmode = {> > .mq_mode = RTE_ETH_MQ_RX_NONE,> > .split_hdr_size = 0,> > },> >
.rx_adv_conf = {> > .rss_conf = {> > .rss_key = NULL,> > .rss_hf =
RTE_ETH_RSS_IP,> > },> > },> > .txmode = {> > .mq_mode = RTE_ETH_MQ_TX_NONE,> >
},> > }> > > call chain:> >
rte_eth_bond_create()->rte_eth_dev_configure()->rte_eth_bond_slave_add()->rte_eth_dev_start()>
> > Signed-off-by: Yu Wenjun <[email protected]>> > ---> >
drivers/net/bonding/rte_eth_bond_pmd.c | 5 +++++> > 1 file changed, 5
insertions(+)> > > diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c >
b/drivers/net/bonding/rte_eth_bond_pmd.c> > index 84f4900ee5..31bcee15cf
100644> > --- a/drivers/net/bonding/rte_eth_bond_pmd.c> > +++
b/drivers/net/bonding/rte_eth_bond_pmd.c> > @@ -3504,6 +3504,11 @@
bond_ethdev_configure(struct rte_eth_dev *dev)> > if
(dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {> > struct
rte_eth_rss_conf *rss_conf => > &dev->data->dev_conf.rx_adv_conf.rss_conf> > +>
> +if (internals->rss_key_len == 0) {> > +internals->rss_key_len =
sizeof(default_rss_key)> > +}> > +> > if (rss_conf->rss_key != NULL) {> > if
(internals->rss_key_len > rss_conf->rss_key_len) {> > RTE_BOND_LOG(ERR,
"Invalid rss key length(%u)",> > -- > > 2.32.0.windows.1> > Subject：Re: [PATCH]
net/bonding: fix RSS not work for bonding in DPDK21.11Hi,在 2022/1/12 15:29,
俞文俊_yewu 写道:> From 85c4ffffe32996fc262dd6f69d0ce272ae8e8350 Mon Sep 17
00:00:00 2001> > From: Yu Wenjun <[email protected]>> > Date:
Wed, 12 Jan 2022 15:01:10 +0800> > Subject: [PATCH] net/bonding: fix RSS not
work for bonding> > > RSS don39t work when upgrade to DPDK21.11.Cannot get your
meaning, Why RSS don39t work?As mq_mode is not RTE_ETH_MQ_RX_RSS in
rte_eth_conf, RSS is off.Please make it clearer, thanks.> > > e.g.:> >
examples/bond/main.c:> > conf:> > static struct rte_eth_conf port_conf = {> >
.rxmode = {> > .mq_mode = RTE_ETH_MQ_RX_NONE,> > .split_hdr_size = 0,> > },> >
.rx_adv_conf = {> > .rss_conf = {> > .rss_key = NULL,> > .rss_hf =
RTE_ETH_RSS_IP,> > },> > },> > .txmode = {> > .mq_mode = RTE_ETH_MQ_TX_NONE,> >
},> > }> > > call chain:> >
rte_eth_bond_create()->rte_eth_dev_configure()->rte_eth_bond_slave_add()->rte_eth_dev_start()>
> > Signed-off-by: Yu Wenjun <[email protected]>> > ---> >
drivers/net/bonding/rte_eth_bond_pmd.c | 5 +++++> > 1 file changed, 5
insertions(+)> > > diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c >
b/drivers/net/bonding/rte_eth_bond_pmd.c> > index 84f4900ee5..31bcee15cf
100644> > --- a/drivers/net/bonding/rte_eth_bond_pmd.c> > +++
b/drivers/net/bonding/rte_eth_bond_pmd.c> > @@ -3504,6 +3504,11 @@
bond_ethdev_configure(struct rte_eth_dev *dev)> > if
(dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS) {> > struct
rte_eth_rss_conf *rss_conf => > &dev->data->dev_conf.rx_adv_conf.rss_conf> > +>
> +if (internals->rss_key_len == 0) {> > +internals->rss_key_len =
sizeof(default_rss_key)> > +}> > +> > if (rss_conf->rss_key != NULL) {> > if
(internals->rss_key_len > rss_conf->rss_key_len) {> > RTE_BOND_LOG(ERR,
"Invalid rss key length(%u)",> > -- > > 2.32.0.windows.1> >
