[dpdk-dev] [PATCH v6] net/ixgbe: fix tx_q check failed on PF

[Zhang, Helin]

> -----Original Message-----
> From: Ananyev, Konstantin
> Sent: Wednesday, January 10, 2018 9:57 AM
> To: Wu, Yanglong; dev at dpdk.org; Zhang, Helin
> Subject: RE: [PATCH v6] net/ixgbe: fix tx_q check failed on PF
> 
> 
> 
> > -----Original Message-----
> > From: Wu, Yanglong
> > Sent: Wednesday, January 10, 2018 1:52 AM
> > To: dev at dpdk.org; Ananyev, Konstantin <konstantin.ananyev at intel.com>;
> > Zhang, Helin <helin.zhang at intel.com>
> > Cc: Wu, Yanglong <yanglong.wu at intel.com>
> > Subject: [PATCH v6] net/ixgbe: fix tx_q check failed on PF
> >
> > Tx_q check failed on PF that occurred when the SRIOV is active and
> > tx_q > rx_q. The tx_q is equal to nb_q_per_pool. The number of
> > nb_q_per_pool should equeal to max number of queues supported by HW
> > not nb_rx_q.
> >
> > Fixes: 27b609cbd1c6 (ethdev: move the multi-queue mode check to
> > specific drivers)
> >
> > Signed-off-by: Yanglong Wu <yanglong.wu at intel.com>
> > ---
> > v5:
> > Rework according to comments
> > ---
> > v6:
> > rework commit log
> > ---
> >  drivers/net/ixgbe/ixgbe_ethdev.c | 10 +++++++---
> >  1 file changed, 7 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c
> > b/drivers/net/ixgbe/ixgbe_ethdev.c
> > index ff19a564a..baaeee5d9 100644
> > --- a/drivers/net/ixgbe/ixgbe_ethdev.c
> > +++ b/drivers/net/ixgbe/ixgbe_ethdev.c
> > @@ -95,6 +95,9 @@
> >  /* Timer value included in XOFF frames. */  #define IXGBE_FC_PAUSE
> > 0x680
> >
> > +/*Default value of Max Rx Queue*/
> > +#define IXGBE_MAX_RX_QUEUE_NUM 128
> > +
> >  #define IXGBE_LINK_DOWN_CHECK_TIMEOUT 4000 /* ms */
> >  #define IXGBE_LINK_UP_CHECK_TIMEOUT   1000 /* ms */
> >  #define IXGBE_VMDQ_NUM_UC_MAC         4096 /* Maximum nb. of UC
> MAC addr. */
> > @@ -2194,9 +2197,10 @@ ixgbe_check_vf_rss_rxq_num(struct rte_eth_dev
> *dev, uint16_t nb_rx_q)
> >  		return -EINVAL;
> >  	}
> >
> > -	RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = nb_rx_q;
> > -	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx = pci_dev->max_vfs *
> nb_rx_q;
> > -
> > +	RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
> > +		IXGBE_MAX_RX_QUEUE_NUM /
> RTE_ETH_DEV_SRIOV(dev).active;
> > +	RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
> > +		pci_dev->max_vfs * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
> >  	return 0;
> >  }
> >
> > --
> 
> Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
Applied to dpdk-next-net-intel, with commit log changes. Thanks!

/Helin
> 
> > 2.11.0