[v4] net/fm10k: add support for check descriptor status APIs
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Commit Message
Fm10k nic need to support check descriptor status APIs, they are
rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
So, this patch add ops with function pointer that enable feature.
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
---
v2:
-fix DD check error in tx descriptor
v3:
-fix DD check index error
v4:
-fix error in RS bit list poll
---
---
doc/guides/rel_notes/release_18_08.rst | 6 +++
drivers/net/fm10k/fm10k.h | 7 +++
drivers/net/fm10k/fm10k_ethdev.c | 2 +
drivers/net/fm10k/fm10k_rxtx.c | 78 ++++++++++++++++++++++++++++++++++
4 files changed, 93 insertions(+)
Comments
Hi Wei:
> -----Original Message-----
> From: Zhao1, Wei
> Sent: Friday, June 22, 2018 4:20 PM
> To: dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>; Zhao1, Wei <wei.zhao1@intel.com>
> Subject: [PATCH v4] net/fm10k: add support for check descriptor status APIs
>
> Fm10k nic need to support check descriptor status APIs, they are
> rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> So, this patch add ops with function pointer that enable feature.
>
> Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
>
> ---
>
> v2:
> -fix DD check error in tx descriptor
>
> v3:
> -fix DD check index error
>
> v4:
> -fix error in RS bit list poll
>
> ---
> ---
> doc/guides/rel_notes/release_18_08.rst | 6 +++
> drivers/net/fm10k/fm10k.h | 7 +++
> drivers/net/fm10k/fm10k_ethdev.c | 2 +
> drivers/net/fm10k/fm10k_rxtx.c | 78
> ++++++++++++++++++++++++++++++++++
> 4 files changed, 93 insertions(+)
>
> diff --git a/doc/guides/rel_notes/release_18_08.rst
> b/doc/guides/rel_notes/release_18_08.rst
> index 5bc23c5..5baa09e 100644
> --- a/doc/guides/rel_notes/release_18_08.rst
> +++ b/doc/guides/rel_notes/release_18_08.rst
> @@ -41,6 +41,12 @@ New Features
> Also, make sure to start the actual text at the margin.
> =========================================================
>
> +* **Added fm10k ethernet driver to support check descriptor status
> +APIs.**
> +
> + Fm10k nic need to support check descriptor status APIs, they are
> + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> + add ops pointer with new function which enable feature.
> +
>
> API Changes
> -----------
> diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h index
> ef30780..1bc2c18 100644
> --- a/drivers/net/fm10k/fm10k.h
> +++ b/drivers/net/fm10k/fm10k.h
> @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void *rx_queue,
> int fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t offset);
>
> +int
> +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> +
> +int
> +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> +
> +
> uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> uint16_t nb_pkts);
>
> diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> b/drivers/net/fm10k/fm10k_ethdev.c
> index 3ff1b0e..ea2f2bf 100644
> --- a/drivers/net/fm10k/fm10k_ethdev.c
> +++ b/drivers/net/fm10k/fm10k_ethdev.c
> @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops fm10k_eth_dev_ops
> = {
> .tx_queue_setup = fm10k_tx_queue_setup,
> .tx_queue_release = fm10k_tx_queue_release,
> .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> .reta_update = fm10k_reta_update,
> diff --git a/drivers/net/fm10k/fm10k_rxtx.c b/drivers/net/fm10k/fm10k_rxtx.c
> index 9320748..daa2b32 100644
> --- a/drivers/net/fm10k/fm10k_rxtx.c
> +++ b/drivers/net/fm10k/fm10k_rxtx.c
> @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue,
> uint16_t offset)
> return ret;
> }
>
> +int
> +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> + volatile union fm10k_rx_desc *rxdp;
> + struct fm10k_rx_queue *rxq = rx_queue;
> + uint16_t nb_hold, trigger_last;
> + uint16_t desc;
> + int ret;
> +
> + if (unlikely(offset >= rxq->nb_desc)) {
> + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
> + return 0;
> + }
> +
> + if (rxq->next_trigger < rxq->alloc_thresh)
> + trigger_last = rxq->next_trigger +
> + rxq->nb_desc - rxq->alloc_thresh;
> + else
> + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> +
> + if (rxq->next_dd < trigger_last)
> + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> + else
> + nb_hold = rxq->next_dd - trigger_last;
> +
> + if (offset >= rxq->nb_desc - nb_hold)
> + return RTE_ETH_RX_DESC_UNAVAIL;
> +
> + desc = rxq->next_dd + offset;
> + if (desc >= rxq->nb_desc)
> + desc -= rxq->nb_desc;
> +
> + rxdp = &rxq->hw_ring[desc];
> +
> + ret = !!(rxdp->w.status &
> + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> +
> + return ret;
> +}
> +
> +int
> +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> + volatile struct fm10k_tx_desc *txdp;
> + struct fm10k_tx_queue *txq = tx_queue;
> + uint16_t desc;
> + uint16_t count, next_rs = txq->nb_desc;
> + struct fifo rs_tracker = txq->rs_tracker;
> + struct fifo *r = &rs_tracker;
> +
> + if (unlikely(offset >= txq->nb_desc))
> + return -EINVAL;
> +
> + desc = txq->next_free + offset;
> + /* go to next desc that has the RS bit */
> + desc = (desc / txq->rs_thresh + 1) *
> + txq->rs_thresh - 1;
> +
> + if (desc >= txq->nb_desc) {
> + desc -= txq->nb_desc;
> + if (desc >= txq->nb_desc)
> + desc -= txq->nb_desc;
> + }
> +
> + r->head = r->list;
> + for (count = 0; r->head != r->endp; count++) {
I didn't see the necessary to have "count" here.
Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
Thanks
Qi
> + if (*r->head >= desc && *r->head < next_rs)
> + next_rs = *r->head;
> + ++r->head;
> + }
> +
> + txdp = &txq->hw_ring[next_rs];
> + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> + return RTE_ETH_TX_DESC_DONE;
> +
> + return RTE_ETH_TX_DESC_FULL;
> +}
> +
> /*
> * Free multiple TX mbuf at a time if they are in the same pool
> *
> --
> 2.7.5
Hi， qi
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Wednesday, June 27, 2018 4:11 PM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> Subject: RE: [PATCH v4] net/fm10k: add support for check descriptor status
> APIs
>
> Hi Wei:
>
> > -----Original Message-----
> > From: Zhao1, Wei
> > Sent: Friday, June 22, 2018 4:20 PM
> > To: dev@dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Zhang, Qi Z
> > <qi.z.zhang@intel.com>; Zhao1, Wei <wei.zhao1@intel.com>
> > Subject: [PATCH v4] net/fm10k: add support for check descriptor status
> > APIs
> >
> > Fm10k nic need to support check descriptor status APIs, they are
> > rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > So, this patch add ops with function pointer that enable feature.
> >
> > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> >
> > ---
> >
> > v2:
> > -fix DD check error in tx descriptor
> >
> > v3:
> > -fix DD check index error
> >
> > v4:
> > -fix error in RS bit list poll
> >
> > ---
> > ---
> > doc/guides/rel_notes/release_18_08.rst | 6 +++
> > drivers/net/fm10k/fm10k.h | 7 +++
> > drivers/net/fm10k/fm10k_ethdev.c | 2 +
> > drivers/net/fm10k/fm10k_rxtx.c | 78
> > ++++++++++++++++++++++++++++++++++
> > 4 files changed, 93 insertions(+)
> >
> > diff --git a/doc/guides/rel_notes/release_18_08.rst
> > b/doc/guides/rel_notes/release_18_08.rst
> > index 5bc23c5..5baa09e 100644
> > --- a/doc/guides/rel_notes/release_18_08.rst
> > +++ b/doc/guides/rel_notes/release_18_08.rst
> > @@ -41,6 +41,12 @@ New Features
> > Also, make sure to start the actual text at the margin.
> >
> =========================================================
> >
> > +* **Added fm10k ethernet driver to support check descriptor status
> > +APIs.**
> > +
> > + Fm10k nic need to support check descriptor status APIs, they are
> > + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > + add ops pointer with new function which enable feature.
> > +
> >
> > API Changes
> > -----------
> > diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
> > index
> > ef30780..1bc2c18 100644
> > --- a/drivers/net/fm10k/fm10k.h
> > +++ b/drivers/net/fm10k/fm10k.h
> > @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void
> > *rx_queue, int fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t
> > offset);
> >
> > +int
> > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> > +
> > +int
> > +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> > +
> > +
> > uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> > uint16_t nb_pkts);
> >
> > diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> > b/drivers/net/fm10k/fm10k_ethdev.c
> > index 3ff1b0e..ea2f2bf 100644
> > --- a/drivers/net/fm10k/fm10k_ethdev.c
> > +++ b/drivers/net/fm10k/fm10k_ethdev.c
> > @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops
> > fm10k_eth_dev_ops = {
> > .tx_queue_setup = fm10k_tx_queue_setup,
> > .tx_queue_release = fm10k_tx_queue_release,
> > .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> > + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> > + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> > .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> > .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> > .reta_update = fm10k_reta_update,
> > diff --git a/drivers/net/fm10k/fm10k_rxtx.c
> > b/drivers/net/fm10k/fm10k_rxtx.c index 9320748..daa2b32 100644
> > --- a/drivers/net/fm10k/fm10k_rxtx.c
> > +++ b/drivers/net/fm10k/fm10k_rxtx.c
> > @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue,
> > uint16_t offset)
> > return ret;
> > }
> >
> > +int
> > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> > + volatile union fm10k_rx_desc *rxdp;
> > + struct fm10k_rx_queue *rxq = rx_queue;
> > + uint16_t nb_hold, trigger_last;
> > + uint16_t desc;
> > + int ret;
> > +
> > + if (unlikely(offset >= rxq->nb_desc)) {
> > + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u",
> offset);
> > + return 0;
> > + }
> > +
> > + if (rxq->next_trigger < rxq->alloc_thresh)
> > + trigger_last = rxq->next_trigger +
> > + rxq->nb_desc - rxq->alloc_thresh;
> > + else
> > + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> > +
> > + if (rxq->next_dd < trigger_last)
> > + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> > + else
> > + nb_hold = rxq->next_dd - trigger_last;
> > +
> > + if (offset >= rxq->nb_desc - nb_hold)
> > + return RTE_ETH_RX_DESC_UNAVAIL;
> > +
> > + desc = rxq->next_dd + offset;
> > + if (desc >= rxq->nb_desc)
> > + desc -= rxq->nb_desc;
> > +
> > + rxdp = &rxq->hw_ring[desc];
> > +
> > + ret = !!(rxdp->w.status &
> > + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> > +
> > + return ret;
> > +}
> > +
> > +int
> > +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> > + volatile struct fm10k_tx_desc *txdp;
> > + struct fm10k_tx_queue *txq = tx_queue;
> > + uint16_t desc;
> > + uint16_t count, next_rs = txq->nb_desc;
> > + struct fifo rs_tracker = txq->rs_tracker;
> > + struct fifo *r = &rs_tracker;
> > +
> > + if (unlikely(offset >= txq->nb_desc))
> > + return -EINVAL;
> > +
> > + desc = txq->next_free + offset;
> > + /* go to next desc that has the RS bit */
> > + desc = (desc / txq->rs_thresh + 1) *
> > + txq->rs_thresh - 1;
> > +
> > + if (desc >= txq->nb_desc) {
> > + desc -= txq->nb_desc;
> > + if (desc >= txq->nb_desc)
> > + desc -= txq->nb_desc;
> > + }
> > +
> > + r->head = r->list;
> > + for (count = 0; r->head != r->endp; count++) {
>
> I didn't see the necessary to have "count" here.
>
> Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
Ok， I will commit v5 later.
>
> Thanks
> Qi
>
>
> > + if (*r->head >= desc && *r->head < next_rs)
> > + next_rs = *r->head;
> > + ++r->head;
> > + }
> > +
> > + txdp = &txq->hw_ring[next_rs];
> > + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> > + return RTE_ETH_TX_DESC_DONE;
> > +
> > + return RTE_ETH_TX_DESC_FULL;
> > +}
> > +
> > /*
> > * Free multiple TX mbuf at a time if they are in the same pool
> > *
> > --
> > 2.7.5
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Wednesday, June 27, 2018 4:11 PM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> Subject: RE: [PATCH v4] net/fm10k: add support for check descriptor status
> APIs
>
> Hi Wei:
>
> > -----Original Message-----
> > From: Zhao1, Wei
> > Sent: Friday, June 22, 2018 4:20 PM
> > To: dev@dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Zhang, Qi Z
> > <qi.z.zhang@intel.com>; Zhao1, Wei <wei.zhao1@intel.com>
> > Subject: [PATCH v4] net/fm10k: add support for check descriptor status
> > APIs
> >
> > Fm10k nic need to support check descriptor status APIs, they are
> > rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > So, this patch add ops with function pointer that enable feature.
> >
How about just simplified to
"rte_eth_rx_descritpr_status and rte_eth_tx_descriptor_status is
supported by fm10K?"
> > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> >
> > ---
> >
> > v2:
> > -fix DD check error in tx descriptor
> >
> > v3:
> > -fix DD check index error
> >
> > v4:
> > -fix error in RS bit list poll
> >
> > ---
> > ---
> > doc/guides/rel_notes/release_18_08.rst | 6 +++
> > drivers/net/fm10k/fm10k.h | 7 +++
> > drivers/net/fm10k/fm10k_ethdev.c | 2 +
> > drivers/net/fm10k/fm10k_rxtx.c | 78
> > ++++++++++++++++++++++++++++++++++
> > 4 files changed, 93 insertions(+)
> >
> > diff --git a/doc/guides/rel_notes/release_18_08.rst
> > b/doc/guides/rel_notes/release_18_08.rst
> > index 5bc23c5..5baa09e 100644
> > --- a/doc/guides/rel_notes/release_18_08.rst
> > +++ b/doc/guides/rel_notes/release_18_08.rst
> > @@ -41,6 +41,12 @@ New Features
> > Also, make sure to start the actual text at the margin.
> > =========================================================
> >
> > +* **Added fm10k ethernet driver to support check descriptor status
> > +APIs.**
> > +
> > + Fm10k nic need to support check descriptor status APIs, they are
> > + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > + add ops pointer with new function which enable feature.
> > +
> >
> > API Changes
> > -----------
> > diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
> > index
> > ef30780..1bc2c18 100644
> > --- a/drivers/net/fm10k/fm10k.h
> > +++ b/drivers/net/fm10k/fm10k.h
> > @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void
> > *rx_queue, int fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t
> > offset);
> >
> > +int
> > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> > +
> > +int
> > +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> > +
> > +
> > uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> > uint16_t nb_pkts);
> >
> > diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> > b/drivers/net/fm10k/fm10k_ethdev.c
> > index 3ff1b0e..ea2f2bf 100644
> > --- a/drivers/net/fm10k/fm10k_ethdev.c
> > +++ b/drivers/net/fm10k/fm10k_ethdev.c
> > @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops
> > fm10k_eth_dev_ops = {
> > .tx_queue_setup = fm10k_tx_queue_setup,
> > .tx_queue_release = fm10k_tx_queue_release,
> > .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> > + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> > + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> > .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> > .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> > .reta_update = fm10k_reta_update,
> > diff --git a/drivers/net/fm10k/fm10k_rxtx.c
> > b/drivers/net/fm10k/fm10k_rxtx.c index 9320748..daa2b32 100644
> > --- a/drivers/net/fm10k/fm10k_rxtx.c
> > +++ b/drivers/net/fm10k/fm10k_rxtx.c
> > @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue,
> > uint16_t offset)
> > return ret;
> > }
> >
> > +int
> > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> > + volatile union fm10k_rx_desc *rxdp;
> > + struct fm10k_rx_queue *rxq = rx_queue;
> > + uint16_t nb_hold, trigger_last;
> > + uint16_t desc;
> > + int ret;
> > +
> > + if (unlikely(offset >= rxq->nb_desc)) {
> > + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
> > + return 0;
> > + }
> > +
> > + if (rxq->next_trigger < rxq->alloc_thresh)
> > + trigger_last = rxq->next_trigger +
> > + rxq->nb_desc - rxq->alloc_thresh;
> > + else
> > + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> > +
> > + if (rxq->next_dd < trigger_last)
> > + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> > + else
> > + nb_hold = rxq->next_dd - trigger_last;
> > +
> > + if (offset >= rxq->nb_desc - nb_hold)
> > + return RTE_ETH_RX_DESC_UNAVAIL;
> > +
> > + desc = rxq->next_dd + offset;
> > + if (desc >= rxq->nb_desc)
> > + desc -= rxq->nb_desc;
> > +
> > + rxdp = &rxq->hw_ring[desc];
> > +
> > + ret = !!(rxdp->w.status &
> > + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> > +
> > + return ret;
> > +}
> > +
> > +int
> > +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> > + volatile struct fm10k_tx_desc *txdp;
> > + struct fm10k_tx_queue *txq = tx_queue;
> > + uint16_t desc;
> > + uint16_t count, next_rs = txq->nb_desc;
> > + struct fifo rs_tracker = txq->rs_tracker;
> > + struct fifo *r = &rs_tracker;
> > +
> > + if (unlikely(offset >= txq->nb_desc))
> > + return -EINVAL;
> > +
> > + desc = txq->next_free + offset;
> > + /* go to next desc that has the RS bit */
> > + desc = (desc / txq->rs_thresh + 1) *
> > + txq->rs_thresh - 1;
> > +
> > + if (desc >= txq->nb_desc) {
> > + desc -= txq->nb_desc;
> > + if (desc >= txq->nb_desc)
> > + desc -= txq->nb_desc;
> > + }
> > +
> > + r->head = r->list;
> > + for (count = 0; r->head != r->endp; count++) {
>
> I didn't see the necessary to have "count" here.
>
> Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
>
> Thanks
> Qi
>
>
> > + if (*r->head >= desc && *r->head < next_rs)
> > + next_rs = *r->head;
> > + ++r->head;
> > + }
> > +
> > + txdp = &txq->hw_ring[next_rs];
> > + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> > + return RTE_ETH_TX_DESC_DONE;
> > +
> > + return RTE_ETH_TX_DESC_FULL;
> > +}
> > +
> > /*
> > * Free multiple TX mbuf at a time if they are in the same pool
> > *
> > --
> > 2.7.5
Hi， qi
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Wednesday, June 27, 2018 4:19 PM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> Subject: RE: [PATCH v4] net/fm10k: add support for check descriptor status
> APIs
>
>
>
> > -----Original Message-----
> > From: Zhang, Qi Z
> > Sent: Wednesday, June 27, 2018 4:11 PM
> > To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> > Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> > Subject: RE: [PATCH v4] net/fm10k: add support for check descriptor
> > status APIs
> >
> > Hi Wei:
> >
> > > -----Original Message-----
> > > From: Zhao1, Wei
> > > Sent: Friday, June 22, 2018 4:20 PM
> > > To: dev@dpdk.org
> > > Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Zhang, Qi Z
> > > <qi.z.zhang@intel.com>; Zhao1, Wei <wei.zhao1@intel.com>
> > > Subject: [PATCH v4] net/fm10k: add support for check descriptor
> > > status APIs
> > >
> > > Fm10k nic need to support check descriptor status APIs, they are
> > > rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > > So, this patch add ops with function pointer that enable feature.
> > >
>
> How about just simplified to
> "rte_eth_rx_descritpr_status and rte_eth_tx_descriptor_status is supported
> by fm10K?"
>
Ok, I have also update this git log in igb patch
https://patches.dpdk.org/patch/41645/
> > > Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
> > >
> > > ---
> > >
> > > v2:
> > > -fix DD check error in tx descriptor
> > >
> > > v3:
> > > -fix DD check index error
> > >
> > > v4:
> > > -fix error in RS bit list poll
> > >
> > > ---
> > > ---
> > > doc/guides/rel_notes/release_18_08.rst | 6 +++
> > > drivers/net/fm10k/fm10k.h | 7 +++
> > > drivers/net/fm10k/fm10k_ethdev.c | 2 +
> > > drivers/net/fm10k/fm10k_rxtx.c | 78
> > > ++++++++++++++++++++++++++++++++++
> > > 4 files changed, 93 insertions(+)
> > >
> > > diff --git a/doc/guides/rel_notes/release_18_08.rst
> > > b/doc/guides/rel_notes/release_18_08.rst
> > > index 5bc23c5..5baa09e 100644
> > > --- a/doc/guides/rel_notes/release_18_08.rst
> > > +++ b/doc/guides/rel_notes/release_18_08.rst
> > > @@ -41,6 +41,12 @@ New Features
> > > Also, make sure to start the actual text at the margin.
> > >
> =========================================================
> > >
> > > +* **Added fm10k ethernet driver to support check descriptor status
> > > +APIs.**
> > > +
> > > + Fm10k nic need to support check descriptor status APIs, they are
> > > + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > > + add ops pointer with new function which enable feature.
> > > +
> > >
> > > API Changes
> > > -----------
> > > diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
> > > index
> > > ef30780..1bc2c18 100644
> > > --- a/drivers/net/fm10k/fm10k.h
> > > +++ b/drivers/net/fm10k/fm10k.h
> > > @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void
> > > *rx_queue, int fm10k_dev_rx_descriptor_done(void *rx_queue,
> > > uint16_t offset);
> > >
> > > +int
> > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> > > +
> > > +int
> > > +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> > > +
> > > +
> > > uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> > > uint16_t nb_pkts);
> > >
> > > diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> > > b/drivers/net/fm10k/fm10k_ethdev.c
> > > index 3ff1b0e..ea2f2bf 100644
> > > --- a/drivers/net/fm10k/fm10k_ethdev.c
> > > +++ b/drivers/net/fm10k/fm10k_ethdev.c
> > > @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops
> > > fm10k_eth_dev_ops = {
> > > .tx_queue_setup = fm10k_tx_queue_setup,
> > > .tx_queue_release = fm10k_tx_queue_release,
> > > .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> > > + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> > > + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> > > .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> > > .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> > > .reta_update = fm10k_reta_update,
> > > diff --git a/drivers/net/fm10k/fm10k_rxtx.c
> > > b/drivers/net/fm10k/fm10k_rxtx.c index 9320748..daa2b32 100644
> > > --- a/drivers/net/fm10k/fm10k_rxtx.c
> > > +++ b/drivers/net/fm10k/fm10k_rxtx.c
> > > @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void
> *rx_queue,
> > > uint16_t offset)
> > > return ret;
> > > }
> > >
> > > +int
> > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> > > + volatile union fm10k_rx_desc *rxdp;
> > > + struct fm10k_rx_queue *rxq = rx_queue;
> > > + uint16_t nb_hold, trigger_last;
> > > + uint16_t desc;
> > > + int ret;
> > > +
> > > + if (unlikely(offset >= rxq->nb_desc)) {
> > > + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u",
> offset);
> > > + return 0;
> > > + }
> > > +
> > > + if (rxq->next_trigger < rxq->alloc_thresh)
> > > + trigger_last = rxq->next_trigger +
> > > + rxq->nb_desc - rxq->alloc_thresh;
> > > + else
> > > + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> > > +
> > > + if (rxq->next_dd < trigger_last)
> > > + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> > > + else
> > > + nb_hold = rxq->next_dd - trigger_last;
> > > +
> > > + if (offset >= rxq->nb_desc - nb_hold)
> > > + return RTE_ETH_RX_DESC_UNAVAIL;
> > > +
> > > + desc = rxq->next_dd + offset;
> > > + if (desc >= rxq->nb_desc)
> > > + desc -= rxq->nb_desc;
> > > +
> > > + rxdp = &rxq->hw_ring[desc];
> > > +
> > > + ret = !!(rxdp->w.status &
> > > + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +int
> > > +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> > > + volatile struct fm10k_tx_desc *txdp;
> > > + struct fm10k_tx_queue *txq = tx_queue;
> > > + uint16_t desc;
> > > + uint16_t count, next_rs = txq->nb_desc;
> > > + struct fifo rs_tracker = txq->rs_tracker;
> > > + struct fifo *r = &rs_tracker;
> > > +
> > > + if (unlikely(offset >= txq->nb_desc))
> > > + return -EINVAL;
> > > +
> > > + desc = txq->next_free + offset;
> > > + /* go to next desc that has the RS bit */
> > > + desc = (desc / txq->rs_thresh + 1) *
> > > + txq->rs_thresh - 1;
> > > +
> > > + if (desc >= txq->nb_desc) {
> > > + desc -= txq->nb_desc;
> > > + if (desc >= txq->nb_desc)
> > > + desc -= txq->nb_desc;
> > > + }
> > > +
> > > + r->head = r->list;
> > > + for (count = 0; r->head != r->endp; count++) {
> >
> > I didn't see the necessary to have "count" here.
> >
> > Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
> >
> > Thanks
> > Qi
> >
> >
> > > + if (*r->head >= desc && *r->head < next_rs)
> > > + next_rs = *r->head;
> > > + ++r->head;
> > > + }
> > > +
> > > + txdp = &txq->hw_ring[next_rs];
> > > + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> > > + return RTE_ETH_TX_DESC_DONE;
> > > +
> > > + return RTE_ETH_TX_DESC_FULL;
> > > +}
> > > +
> > > /*
> > > * Free multiple TX mbuf at a time if they are in the same pool
> > > *
> > > --
> > > 2.7.5
> > > diff --git a/doc/guides/rel_notes/release_18_08.rst
> > > b/doc/guides/rel_notes/release_18_08.rst
> > > index 5bc23c5..5baa09e 100644
> > > --- a/doc/guides/rel_notes/release_18_08.rst
> > > +++ b/doc/guides/rel_notes/release_18_08.rst
> > > @@ -41,6 +41,12 @@ New Features
> > > Also, make sure to start the actual text at the margin.
> > >
> =========================================================
> > >
> > > +* **Added fm10k ethernet driver to support check descriptor status
> > > +APIs.**
> > > +
> > > + Fm10k nic need to support check descriptor status APIs, they are
> > > + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > > + add ops pointer with new function which enable feature.
Sorry, I think the description in release note also nee be changed.
Btw, could you rebase to dpdk-next-net-intel?
Thanks!
Qi
> > > +
> > >
> > > API Changes
> > > -----------
> > > diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
> > > index
> > > ef30780..1bc2c18 100644
> > > --- a/drivers/net/fm10k/fm10k.h
> > > +++ b/drivers/net/fm10k/fm10k.h
> > > @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void
> > > *rx_queue, int fm10k_dev_rx_descriptor_done(void *rx_queue,
> > > uint16_t offset);
> > >
> > > +int
> > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> > > +
> > > +int
> > > +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> > > +
> > > +
> > > uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> > > uint16_t nb_pkts);
> > >
> > > diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> > > b/drivers/net/fm10k/fm10k_ethdev.c
> > > index 3ff1b0e..ea2f2bf 100644
> > > --- a/drivers/net/fm10k/fm10k_ethdev.c
> > > +++ b/drivers/net/fm10k/fm10k_ethdev.c
> > > @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops
> > > fm10k_eth_dev_ops = {
> > > .tx_queue_setup = fm10k_tx_queue_setup,
> > > .tx_queue_release = fm10k_tx_queue_release,
> > > .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> > > + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> > > + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> > > .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> > > .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> > > .reta_update = fm10k_reta_update,
> > > diff --git a/drivers/net/fm10k/fm10k_rxtx.c
> > > b/drivers/net/fm10k/fm10k_rxtx.c index 9320748..daa2b32 100644
> > > --- a/drivers/net/fm10k/fm10k_rxtx.c
> > > +++ b/drivers/net/fm10k/fm10k_rxtx.c
> > > @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue,
> > > uint16_t offset)
> > > return ret;
> > > }
> > >
> > > +int
> > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> > > + volatile union fm10k_rx_desc *rxdp;
> > > + struct fm10k_rx_queue *rxq = rx_queue;
> > > + uint16_t nb_hold, trigger_last;
> > > + uint16_t desc;
> > > + int ret;
> > > +
> > > + if (unlikely(offset >= rxq->nb_desc)) {
> > > + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
> > > + return 0;
> > > + }
> > > +
> > > + if (rxq->next_trigger < rxq->alloc_thresh)
> > > + trigger_last = rxq->next_trigger +
> > > + rxq->nb_desc - rxq->alloc_thresh;
> > > + else
> > > + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> > > +
> > > + if (rxq->next_dd < trigger_last)
> > > + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> > > + else
> > > + nb_hold = rxq->next_dd - trigger_last;
> > > +
> > > + if (offset >= rxq->nb_desc - nb_hold)
> > > + return RTE_ETH_RX_DESC_UNAVAIL;
> > > +
> > > + desc = rxq->next_dd + offset;
> > > + if (desc >= rxq->nb_desc)
> > > + desc -= rxq->nb_desc;
> > > +
> > > + rxdp = &rxq->hw_ring[desc];
> > > +
> > > + ret = !!(rxdp->w.status &
> > > + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +int
> > > +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> > > + volatile struct fm10k_tx_desc *txdp;
> > > + struct fm10k_tx_queue *txq = tx_queue;
> > > + uint16_t desc;
> > > + uint16_t count, next_rs = txq->nb_desc;
> > > + struct fifo rs_tracker = txq->rs_tracker;
> > > + struct fifo *r = &rs_tracker;
> > > +
> > > + if (unlikely(offset >= txq->nb_desc))
> > > + return -EINVAL;
> > > +
> > > + desc = txq->next_free + offset;
> > > + /* go to next desc that has the RS bit */
> > > + desc = (desc / txq->rs_thresh + 1) *
> > > + txq->rs_thresh - 1;
> > > +
> > > + if (desc >= txq->nb_desc) {
> > > + desc -= txq->nb_desc;
> > > + if (desc >= txq->nb_desc)
> > > + desc -= txq->nb_desc;
> > > + }
> > > +
> > > + r->head = r->list;
> > > + for (count = 0; r->head != r->endp; count++) {
> >
> > I didn't see the necessary to have "count" here.
> >
> > Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
> >
> > Thanks
> > Qi
> >
> >
> > > + if (*r->head >= desc && *r->head < next_rs)
> > > + next_rs = *r->head;
> > > + ++r->head;
> > > + }
> > > +
> > > + txdp = &txq->hw_ring[next_rs];
> > > + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> > > + return RTE_ETH_TX_DESC_DONE;
> > > +
> > > + return RTE_ETH_TX_DESC_FULL;
> > > +}
> > > +
> > > /*
> > > * Free multiple TX mbuf at a time if they are in the same pool
> > > *
> > > --
> > > 2.7.5
> -----Original Message-----
> From: Zhang, Qi Z
> Sent: Wednesday, June 27, 2018 8:50 PM
> To: Zhao1, Wei <wei.zhao1@intel.com>; dev@dpdk.org
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>
> Subject: RE: [PATCH v4] net/fm10k: add support for check descriptor status
> APIs
>
> > > > diff --git a/doc/guides/rel_notes/release_18_08.rst
> > > > b/doc/guides/rel_notes/release_18_08.rst
> > > > index 5bc23c5..5baa09e 100644
> > > > --- a/doc/guides/rel_notes/release_18_08.rst
> > > > +++ b/doc/guides/rel_notes/release_18_08.rst
> > > > @@ -41,6 +41,12 @@ New Features
> > > > Also, make sure to start the actual text at the margin.
> > > >
> > =========================================================
> > > >
> > > > +* **Added fm10k ethernet driver to support check descriptor
> > > > +status
> > > > +APIs.**
> > > > +
> > > > + Fm10k nic need to support check descriptor status APIs, they are
> > > > + rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
> > > > + add ops pointer with new function which enable feature.
>
> Sorry, I think the description in release note also nee be changed.
> Btw, could you rebase to dpdk-next-net-intel?
Ok, I will commit later.
>
> Thanks!
> Qi
>
> > > > +
> > > >
> > > > API Changes
> > > > -----------
> > > > diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
> > > > index
> > > > ef30780..1bc2c18 100644
> > > > --- a/drivers/net/fm10k/fm10k.h
> > > > +++ b/drivers/net/fm10k/fm10k.h
> > > > @@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void
> > > > *rx_queue, int fm10k_dev_rx_descriptor_done(void *rx_queue,
> > > > uint16_t offset);
> > > >
> > > > +int
> > > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
> > > > +
> > > > +int
> > > > +fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
> > > > +
> > > > +
> > > > uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
> > > > uint16_t nb_pkts);
> > > >
> > > > diff --git a/drivers/net/fm10k/fm10k_ethdev.c
> > > > b/drivers/net/fm10k/fm10k_ethdev.c
> > > > index 3ff1b0e..ea2f2bf 100644
> > > > --- a/drivers/net/fm10k/fm10k_ethdev.c
> > > > +++ b/drivers/net/fm10k/fm10k_ethdev.c
> > > > @@ -2837,6 +2837,8 @@ static const struct eth_dev_ops
> > > > fm10k_eth_dev_ops = {
> > > > .tx_queue_setup = fm10k_tx_queue_setup,
> > > > .tx_queue_release = fm10k_tx_queue_release,
> > > > .rx_descriptor_done = fm10k_dev_rx_descriptor_done,
> > > > + .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
> > > > + .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
> > > > .rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
> > > > .rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
> > > > .reta_update = fm10k_reta_update,
> > > > diff --git a/drivers/net/fm10k/fm10k_rxtx.c
> > > > b/drivers/net/fm10k/fm10k_rxtx.c index 9320748..daa2b32 100644
> > > > --- a/drivers/net/fm10k/fm10k_rxtx.c
> > > > +++ b/drivers/net/fm10k/fm10k_rxtx.c
> > > > @@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void
> *rx_queue,
> > > > uint16_t offset)
> > > > return ret;
> > > > }
> > > >
> > > > +int
> > > > +fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset) {
> > > > + volatile union fm10k_rx_desc *rxdp;
> > > > + struct fm10k_rx_queue *rxq = rx_queue;
> > > > + uint16_t nb_hold, trigger_last;
> > > > + uint16_t desc;
> > > > + int ret;
> > > > +
> > > > + if (unlikely(offset >= rxq->nb_desc)) {
> > > > + PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u",
> offset);
> > > > + return 0;
> > > > + }
> > > > +
> > > > + if (rxq->next_trigger < rxq->alloc_thresh)
> > > > + trigger_last = rxq->next_trigger +
> > > > + rxq->nb_desc - rxq->alloc_thresh;
> > > > + else
> > > > + trigger_last = rxq->next_trigger - rxq->alloc_thresh;
> > > > +
> > > > + if (rxq->next_dd < trigger_last)
> > > > + nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
> > > > + else
> > > > + nb_hold = rxq->next_dd - trigger_last;
> > > > +
> > > > + if (offset >= rxq->nb_desc - nb_hold)
> > > > + return RTE_ETH_RX_DESC_UNAVAIL;
> > > > +
> > > > + desc = rxq->next_dd + offset;
> > > > + if (desc >= rxq->nb_desc)
> > > > + desc -= rxq->nb_desc;
> > > > +
> > > > + rxdp = &rxq->hw_ring[desc];
> > > > +
> > > > + ret = !!(rxdp->w.status &
> > > > + rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
> > > > +
> > > > + return ret;
> > > > +}
> > > > +
> > > > +int
> > > > +fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset) {
> > > > + volatile struct fm10k_tx_desc *txdp;
> > > > + struct fm10k_tx_queue *txq = tx_queue;
> > > > + uint16_t desc;
> > > > + uint16_t count, next_rs = txq->nb_desc;
> > > > + struct fifo rs_tracker = txq->rs_tracker;
> > > > + struct fifo *r = &rs_tracker;
> > > > +
> > > > + if (unlikely(offset >= txq->nb_desc))
> > > > + return -EINVAL;
> > > > +
> > > > + desc = txq->next_free + offset;
> > > > + /* go to next desc that has the RS bit */
> > > > + desc = (desc / txq->rs_thresh + 1) *
> > > > + txq->rs_thresh - 1;
> > > > +
> > > > + if (desc >= txq->nb_desc) {
> > > > + desc -= txq->nb_desc;
> > > > + if (desc >= txq->nb_desc)
> > > > + desc -= txq->nb_desc;
> > > > + }
> > > > +
> > > > + r->head = r->list;
> > > > + for (count = 0; r->head != r->endp; count++) {
> > >
> > > I didn't see the necessary to have "count" here.
> > >
> > > Others I didn't see issue, btw, could you rebase on dpdk-next-net-intel?
> > >
> > > Thanks
> > > Qi
> > >
> > >
> > > > + if (*r->head >= desc && *r->head < next_rs)
> > > > + next_rs = *r->head;
> > > > + ++r->head;
> > > > + }
> > > > +
> > > > + txdp = &txq->hw_ring[next_rs];
> > > > + if (txdp->flags & FM10K_TXD_FLAG_DONE)
> > > > + return RTE_ETH_TX_DESC_DONE;
> > > > +
> > > > + return RTE_ETH_TX_DESC_FULL;
> > > > +}
> > > > +
> > > > /*
> > > > * Free multiple TX mbuf at a time if they are in the same pool
> > > > *
> > > > --
> > > > 2.7.5
@@ -41,6 +41,12 @@ New Features
Also, make sure to start the actual text at the margin.
=========================================================
+* **Added fm10k ethernet driver to support check descriptor status APIs.**
+
+ Fm10k nic need to support check descriptor status APIs, they are
+ rte_eth_rx_descriptor_status and rte_eth_tx_descriptor_status.
+ add ops pointer with new function which enable feature.
+
API Changes
-----------
@@ -329,6 +329,13 @@ uint16_t fm10k_recv_scattered_pkts(void *rx_queue,
int
fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t offset);
+int
+fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset);
+
+int
+fm10k_dev_tx_descriptor_status(void *rx_queue, uint16_t offset);
+
+
uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
@@ -2837,6 +2837,8 @@ static const struct eth_dev_ops fm10k_eth_dev_ops = {
.tx_queue_setup = fm10k_tx_queue_setup,
.tx_queue_release = fm10k_tx_queue_release,
.rx_descriptor_done = fm10k_dev_rx_descriptor_done,
+ .rx_descriptor_status = fm10k_dev_rx_descriptor_status,
+ .tx_descriptor_status = fm10k_dev_tx_descriptor_status,
.rx_queue_intr_enable = fm10k_dev_rx_queue_intr_enable,
.rx_queue_intr_disable = fm10k_dev_rx_queue_intr_disable,
.reta_update = fm10k_reta_update,
@@ -389,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
return ret;
}
+int
+fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
+{
+ volatile union fm10k_rx_desc *rxdp;
+ struct fm10k_rx_queue *rxq = rx_queue;
+ uint16_t nb_hold, trigger_last;
+ uint16_t desc;
+ int ret;
+
+ if (unlikely(offset >= rxq->nb_desc)) {
+ PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
+ return 0;
+ }
+
+ if (rxq->next_trigger < rxq->alloc_thresh)
+ trigger_last = rxq->next_trigger +
+ rxq->nb_desc - rxq->alloc_thresh;
+ else
+ trigger_last = rxq->next_trigger - rxq->alloc_thresh;
+
+ if (rxq->next_dd < trigger_last)
+ nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
+ else
+ nb_hold = rxq->next_dd - trigger_last;
+
+ if (offset >= rxq->nb_desc - nb_hold)
+ return RTE_ETH_RX_DESC_UNAVAIL;
+
+ desc = rxq->next_dd + offset;
+ if (desc >= rxq->nb_desc)
+ desc -= rxq->nb_desc;
+
+ rxdp = &rxq->hw_ring[desc];
+
+ ret = !!(rxdp->w.status &
+ rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
+
+ return ret;
+}
+
+int
+fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
+{
+ volatile struct fm10k_tx_desc *txdp;
+ struct fm10k_tx_queue *txq = tx_queue;
+ uint16_t desc;
+ uint16_t count, next_rs = txq->nb_desc;
+ struct fifo rs_tracker = txq->rs_tracker;
+ struct fifo *r = &rs_tracker;
+
+ if (unlikely(offset >= txq->nb_desc))
+ return -EINVAL;
+
+ desc = txq->next_free + offset;
+ /* go to next desc that has the RS bit */
+ desc = (desc / txq->rs_thresh + 1) *
+ txq->rs_thresh - 1;
+
+ if (desc >= txq->nb_desc) {
+ desc -= txq->nb_desc;
+ if (desc >= txq->nb_desc)
+ desc -= txq->nb_desc;
+ }
+
+ r->head = r->list;
+ for (count = 0; r->head != r->endp; count++) {
+ if (*r->head >= desc && *r->head < next_rs)
+ next_rs = *r->head;
+ ++r->head;
+ }
+
+ txdp = &txq->hw_ring[next_rs];
+ if (txdp->flags & FM10K_TXD_FLAG_DONE)
+ return RTE_ETH_TX_DESC_DONE;
+
+ return RTE_ETH_TX_DESC_FULL;
+}
+
/*
* Free multiple TX mbuf at a time if they are in the same pool
*