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* [PATCH] net/cnxk: resolve mbuf data length update issue
@ 2022-01-19 10:52 Rahul Bhansali
  2022-02-16 13:36 ` Jerin Jacob
  0 siblings, 1 reply; 2+ messages in thread
From: Rahul Bhansali @ 2022-01-19 10:52 UTC (permalink / raw)
  To: dev, Pavan Nikhilesh, Shijith Thotton, Nithin Dabilpuram,
	Kiran Kumar K, Sunil Kumar Kori, Satha Rao
  Cc: jerinj, Rahul Bhansali

If multi-segment is enabled and single segment/packet
is received, then mbuf data_len is not updated in
cn9k_nix_cqe_to_mbuf function.
Also, in case of timestamp is enabled, mbuf data_len
and pkt_len will be updated for all packets including
multi segmented packets.

Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>
---
Depends-on: Series-21246 ("[v2,1/4] net/cnxk: avoid command copy from Tx
queue")

 drivers/event/cnxk/cn10k_worker.h |  2 --
 drivers/event/cnxk/cn9k_worker.h  |  2 --
 drivers/net/cnxk/cn10k_rx.h       |  9 +++++++--
 drivers/net/cnxk/cn9k_rx.h        | 18 +++++++++++-------
 drivers/net/cnxk/cnxk_ethdev.h    |  9 +++------
 5 files changed, 21 insertions(+), 19 deletions(-)

diff --git a/drivers/event/cnxk/cn10k_worker.h b/drivers/event/cnxk/cn10k_worker.h
index 1e61a6ddf0..5c36540a43 100644
--- a/drivers/event/cnxk/cn10k_worker.h
+++ b/drivers/event/cnxk/cn10k_worker.h
@@ -174,7 +174,6 @@ cn10k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const uint32_t flags,
 					   CNXK_SSO_WQE_SG_PTR);
 		cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf, tstamp,
 					flags & NIX_RX_OFFLOAD_TSTAMP_F,
-					flags & NIX_RX_MULTI_SEG_F,
 					(uint64_t *)tstamp_ptr);
 		wqe[0] = (uint64_t *)mbuf;
 		non_vec--;
@@ -266,7 +265,6 @@ cn10k_sso_hws_get_work(struct cn10k_sso_hws *ws, struct rte_event *ev,
 			cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
 						ws->tstamp,
 						flags & NIX_RX_OFFLOAD_TSTAMP_F,
-						flags & NIX_RX_MULTI_SEG_F,
 						(uint64_t *)tstamp_ptr);
 			gw.u64[1] = mbuf;
 		} else if (CNXK_EVENT_TYPE_FROM_TAG(gw.u64[0]) ==
diff --git a/drivers/event/cnxk/cn9k_worker.h b/drivers/event/cnxk/cn9k_worker.h
index e44422ec25..368baae048 100644
--- a/drivers/event/cnxk/cn9k_worker.h
+++ b/drivers/event/cnxk/cn9k_worker.h
@@ -208,7 +208,6 @@ cn9k_sso_hws_dual_get_work(uint64_t base, uint64_t pair_base,
 			cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
 						dws->tstamp,
 						flags & NIX_RX_OFFLOAD_TSTAMP_F,
-						flags & NIX_RX_MULTI_SEG_F,
 						(uint64_t *)tstamp_ptr);
 			gw.u64[1] = mbuf;
 		}
@@ -285,7 +284,6 @@ cn9k_sso_hws_get_work(struct cn9k_sso_hws *ws, struct rte_event *ev,
 			cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
 						ws->tstamp,
 						flags & NIX_RX_OFFLOAD_TSTAMP_F,
-						flags & NIX_RX_MULTI_SEG_F,
 						(uint64_t *)tstamp_ptr);
 			gw.u64[1] = mbuf;
 		}
diff --git a/drivers/net/cnxk/cn10k_rx.h b/drivers/net/cnxk/cn10k_rx.h
index 9694a3080f..45b626b089 100644
--- a/drivers/net/cnxk/cn10k_rx.h
+++ b/drivers/net/cnxk/cn10k_rx.h
@@ -364,7 +364,13 @@ cn10k_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
 	*(uint64_t *)(&mbuf->rearm_data) = val;

 	if (flag & NIX_RX_MULTI_SEG_F)
-		nix_cqe_xtract_mseg(rx, mbuf, val, flag);
+		/*
+		 * For multi segment packets, mbuf length correction according
+		 * to Rx timestamp length will be handled later during
+		 * timestamp data process.
+		 * Hence, flag argument is not required.
+		 */
+		nix_cqe_xtract_mseg(rx, mbuf, val, 0);
 	else
 		mbuf->next = NULL;
 }
@@ -452,7 +458,6 @@ cn10k_nix_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts,
 				      flags);
 		cnxk_nix_mbuf_to_tstamp(mbuf, rxq->tstamp,
 					(flags & NIX_RX_OFFLOAD_TSTAMP_F),
-					(flags & NIX_RX_MULTI_SEG_F),
 					(uint64_t *)((uint8_t *)mbuf
 								+ data_off));
 		rx_pkts[packets++] = mbuf;
diff --git a/drivers/net/cnxk/cn9k_rx.h b/drivers/net/cnxk/cn9k_rx.h
index fa4efbf80a..c883eaeb07 100644
--- a/drivers/net/cnxk/cn9k_rx.h
+++ b/drivers/net/cnxk/cn9k_rx.h
@@ -345,13 +345,18 @@ cn9k_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
 	mbuf->ol_flags = ol_flags;
 	*(uint64_t *)(&mbuf->rearm_data) = val;
 	mbuf->pkt_len = len;
-
-	if (flag & NIX_RX_MULTI_SEG_F) {
-		nix_cqe_xtract_mseg(rx, mbuf, val, flag);
-	} else {
-		mbuf->data_len = len;
+	mbuf->data_len = len;
+
+	if (flag & NIX_RX_MULTI_SEG_F)
+		/*
+		 * For multi segment packets, mbuf length correction according
+		 * to Rx timestamp length will be handled later during
+		 * timestamp data process.
+		 * Hence, flag argument is not required.
+		 */
+		nix_cqe_xtract_mseg(rx, mbuf, val, 0);
+	else
 		mbuf->next = NULL;
-	}
 }

 static inline uint16_t
@@ -414,7 +419,6 @@ cn9k_nix_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts,
 				     flags);
 		cnxk_nix_mbuf_to_tstamp(mbuf, rxq->tstamp,
 					(flags & NIX_RX_OFFLOAD_TSTAMP_F),
-					(flags & NIX_RX_MULTI_SEG_F),
 					(uint64_t *)((uint8_t *)mbuf
 								+ data_off));
 		rx_pkts[packets++] = mbuf;
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index 5bfda3d815..480cc6dfa4 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -685,14 +685,11 @@ cnxk_nix_timestamp_dynfield(struct rte_mbuf *mbuf,
 static __rte_always_inline void
 cnxk_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
 			struct cnxk_timesync_info *tstamp,
-			const uint8_t ts_enable, const uint8_t mseg_enable,
-			uint64_t *tstamp_ptr)
+			const uint8_t ts_enable, uint64_t *tstamp_ptr)
 {
 	if (ts_enable) {
-		if (!mseg_enable) {
-			mbuf->pkt_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
-			mbuf->data_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
-		}
+		mbuf->pkt_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
+		mbuf->data_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;

 		/* Reading the rx timestamp inserted by CGX, viz at
 		 * starting of the packet data.
--
2.25.1


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] net/cnxk: resolve mbuf data length update issue
  2022-01-19 10:52 [PATCH] net/cnxk: resolve mbuf data length update issue Rahul Bhansali
@ 2022-02-16 13:36 ` Jerin Jacob
  0 siblings, 0 replies; 2+ messages in thread
From: Jerin Jacob @ 2022-02-16 13:36 UTC (permalink / raw)
  To: Rahul Bhansali
  Cc: dpdk-dev, Pavan Nikhilesh, Shijith Thotton, Nithin Dabilpuram,
	Kiran Kumar K, Sunil Kumar Kori, Satha Rao, Jerin Jacob

On Wed, Jan 19, 2022 at 4:22 PM Rahul Bhansali <rbhansali@marvell.com> wrote:
>
> If multi-segment is enabled and single segment/packet
> is received, then mbuf data_len is not updated in
> cn9k_nix_cqe_to_mbuf function.
> Also, in case of timestamp is enabled, mbuf data_len
> and pkt_len will be updated for all packets including
> multi segmented packets.
>
> Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>

Changed the git commit as follows and Applied to
dpdk-next-net-mrvl/for-next-net. Thanks

    net/cnxk: fix mbuf data length

    If multi-segment is enabled and single segment/packet
    is received, then mbuf data_len is not updated in
    cn9k_nix_cqe_to_mbuf() function.
    Also, in case of timestamp is enabled, mbuf data_len
    and pkt_len will be updated for all packets including
    multi segmented packets.

    Fixes: 7c6bee34064f ("net/cnxk: enable PTP processing in vector Rx")
    Cc: stable@dpdk.org

    Signed-off-by: Rahul Bhansali <rbhansali@marvell.com>
    Acked-by: Jerin Jacob <jerinj@marvell.com>


> ---
> Depends-on: Series-21246 ("[v2,1/4] net/cnxk: avoid command copy from Tx
> queue")
>
>  drivers/event/cnxk/cn10k_worker.h |  2 --
>  drivers/event/cnxk/cn9k_worker.h  |  2 --
>  drivers/net/cnxk/cn10k_rx.h       |  9 +++++++--
>  drivers/net/cnxk/cn9k_rx.h        | 18 +++++++++++-------
>  drivers/net/cnxk/cnxk_ethdev.h    |  9 +++------
>  5 files changed, 21 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/event/cnxk/cn10k_worker.h b/drivers/event/cnxk/cn10k_worker.h
> index 1e61a6ddf0..5c36540a43 100644
> --- a/drivers/event/cnxk/cn10k_worker.h
> +++ b/drivers/event/cnxk/cn10k_worker.h
> @@ -174,7 +174,6 @@ cn10k_process_vwqe(uintptr_t vwqe, uint16_t port_id, const uint32_t flags,
>                                            CNXK_SSO_WQE_SG_PTR);
>                 cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf, tstamp,
>                                         flags & NIX_RX_OFFLOAD_TSTAMP_F,
> -                                       flags & NIX_RX_MULTI_SEG_F,
>                                         (uint64_t *)tstamp_ptr);
>                 wqe[0] = (uint64_t *)mbuf;
>                 non_vec--;
> @@ -266,7 +265,6 @@ cn10k_sso_hws_get_work(struct cn10k_sso_hws *ws, struct rte_event *ev,
>                         cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
>                                                 ws->tstamp,
>                                                 flags & NIX_RX_OFFLOAD_TSTAMP_F,
> -                                               flags & NIX_RX_MULTI_SEG_F,
>                                                 (uint64_t *)tstamp_ptr);
>                         gw.u64[1] = mbuf;
>                 } else if (CNXK_EVENT_TYPE_FROM_TAG(gw.u64[0]) ==
> diff --git a/drivers/event/cnxk/cn9k_worker.h b/drivers/event/cnxk/cn9k_worker.h
> index e44422ec25..368baae048 100644
> --- a/drivers/event/cnxk/cn9k_worker.h
> +++ b/drivers/event/cnxk/cn9k_worker.h
> @@ -208,7 +208,6 @@ cn9k_sso_hws_dual_get_work(uint64_t base, uint64_t pair_base,
>                         cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
>                                                 dws->tstamp,
>                                                 flags & NIX_RX_OFFLOAD_TSTAMP_F,
> -                                               flags & NIX_RX_MULTI_SEG_F,
>                                                 (uint64_t *)tstamp_ptr);
>                         gw.u64[1] = mbuf;
>                 }
> @@ -285,7 +284,6 @@ cn9k_sso_hws_get_work(struct cn9k_sso_hws *ws, struct rte_event *ev,
>                         cnxk_nix_mbuf_to_tstamp((struct rte_mbuf *)mbuf,
>                                                 ws->tstamp,
>                                                 flags & NIX_RX_OFFLOAD_TSTAMP_F,
> -                                               flags & NIX_RX_MULTI_SEG_F,
>                                                 (uint64_t *)tstamp_ptr);
>                         gw.u64[1] = mbuf;
>                 }
> diff --git a/drivers/net/cnxk/cn10k_rx.h b/drivers/net/cnxk/cn10k_rx.h
> index 9694a3080f..45b626b089 100644
> --- a/drivers/net/cnxk/cn10k_rx.h
> +++ b/drivers/net/cnxk/cn10k_rx.h
> @@ -364,7 +364,13 @@ cn10k_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
>         *(uint64_t *)(&mbuf->rearm_data) = val;
>
>         if (flag & NIX_RX_MULTI_SEG_F)
> -               nix_cqe_xtract_mseg(rx, mbuf, val, flag);
> +               /*
> +                * For multi segment packets, mbuf length correction according
> +                * to Rx timestamp length will be handled later during
> +                * timestamp data process.
> +                * Hence, flag argument is not required.
> +                */
> +               nix_cqe_xtract_mseg(rx, mbuf, val, 0);
>         else
>                 mbuf->next = NULL;
>  }
> @@ -452,7 +458,6 @@ cn10k_nix_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts,
>                                       flags);
>                 cnxk_nix_mbuf_to_tstamp(mbuf, rxq->tstamp,
>                                         (flags & NIX_RX_OFFLOAD_TSTAMP_F),
> -                                       (flags & NIX_RX_MULTI_SEG_F),
>                                         (uint64_t *)((uint8_t *)mbuf
>                                                                 + data_off));
>                 rx_pkts[packets++] = mbuf;
> diff --git a/drivers/net/cnxk/cn9k_rx.h b/drivers/net/cnxk/cn9k_rx.h
> index fa4efbf80a..c883eaeb07 100644
> --- a/drivers/net/cnxk/cn9k_rx.h
> +++ b/drivers/net/cnxk/cn9k_rx.h
> @@ -345,13 +345,18 @@ cn9k_nix_cqe_to_mbuf(const struct nix_cqe_hdr_s *cq, const uint32_t tag,
>         mbuf->ol_flags = ol_flags;
>         *(uint64_t *)(&mbuf->rearm_data) = val;
>         mbuf->pkt_len = len;
> -
> -       if (flag & NIX_RX_MULTI_SEG_F) {
> -               nix_cqe_xtract_mseg(rx, mbuf, val, flag);
> -       } else {
> -               mbuf->data_len = len;
> +       mbuf->data_len = len;
> +
> +       if (flag & NIX_RX_MULTI_SEG_F)
> +               /*
> +                * For multi segment packets, mbuf length correction according
> +                * to Rx timestamp length will be handled later during
> +                * timestamp data process.
> +                * Hence, flag argument is not required.
> +                */
> +               nix_cqe_xtract_mseg(rx, mbuf, val, 0);
> +       else
>                 mbuf->next = NULL;
> -       }
>  }
>
>  static inline uint16_t
> @@ -414,7 +419,6 @@ cn9k_nix_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t pkts,
>                                      flags);
>                 cnxk_nix_mbuf_to_tstamp(mbuf, rxq->tstamp,
>                                         (flags & NIX_RX_OFFLOAD_TSTAMP_F),
> -                                       (flags & NIX_RX_MULTI_SEG_F),
>                                         (uint64_t *)((uint8_t *)mbuf
>                                                                 + data_off));
>                 rx_pkts[packets++] = mbuf;
> diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
> index 5bfda3d815..480cc6dfa4 100644
> --- a/drivers/net/cnxk/cnxk_ethdev.h
> +++ b/drivers/net/cnxk/cnxk_ethdev.h
> @@ -685,14 +685,11 @@ cnxk_nix_timestamp_dynfield(struct rte_mbuf *mbuf,
>  static __rte_always_inline void
>  cnxk_nix_mbuf_to_tstamp(struct rte_mbuf *mbuf,
>                         struct cnxk_timesync_info *tstamp,
> -                       const uint8_t ts_enable, const uint8_t mseg_enable,
> -                       uint64_t *tstamp_ptr)
> +                       const uint8_t ts_enable, uint64_t *tstamp_ptr)
>  {
>         if (ts_enable) {
> -               if (!mseg_enable) {
> -                       mbuf->pkt_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
> -                       mbuf->data_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
> -               }
> +               mbuf->pkt_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
> +               mbuf->data_len -= CNXK_NIX_TIMESYNC_RX_OFFSET;
>
>                 /* Reading the rx timestamp inserted by CGX, viz at
>                  * starting of the packet data.
> --
> 2.25.1
>

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2022-02-16 13:37 UTC | newest]

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