[1/2] net/ark: remove queue offset based on port id

Message ID 1563541663-10797-1-git-send-email-ed.czeck@atomicrules.com
State Superseded, archived
Delegated to: Ferruh Yigit
Headers show
Series
  • [1/2] net/ark: remove queue offset based on port id
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Checks

Context Check Description
ci/intel-Performance-Testing success Performance Testing PASS
ci/mellanox-Performance-Testing success Performance Testing PASS
ci/Intel-compilation success Compilation OK
ci/checkpatch success coding style OK

Commit Message

Ed Czeck July 19, 2019, 1:07 p.m.
Queue index was incorrectly incremented with port, which
caused swizzling of packet placement among queues. This manifested
when the number of configured ports was >1 and < nb_queues.

Fixes: c33d45af3633 ("net/ark: add Tx initial version")
Cc: stable@dpdk.org

Signed-off-by: Ed Czeck <ed.czeck@atomicrules.com>
---
 drivers/net/ark/ark_ethdev_rx.c | 4 +---
 drivers/net/ark/ark_ethdev_tx.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

Comments

Ferruh Yigit July 19, 2019, 5:27 p.m. | #1
On 7/19/2019 2:07 PM, Ed Czeck wrote:
> Queue index was incorrectly incremented with port, which
> caused swizzling of packet placement among queues. 

What is "swizzling of packet placement"?


'qidx' is used to set 'phys_qid', if what the name suggest is correct it is used
to access the actual physical queues.

How this was working if you are calculating physical queue indexes wrong?
(Of-course except port 0)

Are you actually fixing the multiple port support?


> This manifested
> when the number of configured ports was >1 and < nb_queues.

I can see port number ">1", but is the 'nb_queues' limitation real?

If there are 2 queues per port, and you are configuring 3 ports will the
original calculation be correct?

> 
> Fixes: c33d45af3633 ("net/ark: add Tx initial version")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Ed Czeck <ed.czeck@atomicrules.com>
> ---
>  drivers/net/ark/ark_ethdev_rx.c | 4 +---
>  drivers/net/ark/ark_ethdev_tx.c | 4 +---
>  2 files changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/net/ark/ark_ethdev_rx.c b/drivers/net/ark/ark_ethdev_rx.c
> index 7de1a98..6156730 100644
> --- a/drivers/net/ark/ark_ethdev_rx.c
> +++ b/drivers/net/ark/ark_ethdev_rx.c
> @@ -127,9 +127,7 @@ eth_ark_dev_rx_queue_setup(struct rte_eth_dev *dev,
>  	uint32_t i;
>  	int status;
>  
> -	/* Future works: divide the Q's evenly with multi-ports */
> -	int port = dev->data->port_id;
> -	int qidx = port + queue_idx;
> +	int qidx = queue_idx;
>  
>  	/* We may already be setup, free memory prior to re-allocation */
>  	if (dev->data->rx_queues[queue_idx] != NULL) {
> diff --git a/drivers/net/ark/ark_ethdev_tx.c b/drivers/net/ark/ark_ethdev_tx.c
> index 1967655..08bcf43 100644
> --- a/drivers/net/ark/ark_ethdev_tx.c
> +++ b/drivers/net/ark/ark_ethdev_tx.c
> @@ -211,9 +211,7 @@ eth_ark_tx_queue_setup(struct rte_eth_dev *dev,
>  	struct ark_tx_queue *queue;
>  	int status;
>  
> -	/* Future: divide the Q's evenly with multi-ports */
> -	int port = dev->data->port_id;
> -	int qidx = port + queue_idx;
> +	int qidx = queue_idx;
>  
>  	if (!rte_is_power_of_2(nb_desc)) {
>  		PMD_DRV_LOG(ERR,
>

Patch

diff --git a/drivers/net/ark/ark_ethdev_rx.c b/drivers/net/ark/ark_ethdev_rx.c
index 7de1a98..6156730 100644
--- a/drivers/net/ark/ark_ethdev_rx.c
+++ b/drivers/net/ark/ark_ethdev_rx.c
@@ -127,9 +127,7 @@  eth_ark_dev_rx_queue_setup(struct rte_eth_dev *dev,
 	uint32_t i;
 	int status;
 
-	/* Future works: divide the Q's evenly with multi-ports */
-	int port = dev->data->port_id;
-	int qidx = port + queue_idx;
+	int qidx = queue_idx;
 
 	/* We may already be setup, free memory prior to re-allocation */
 	if (dev->data->rx_queues[queue_idx] != NULL) {
diff --git a/drivers/net/ark/ark_ethdev_tx.c b/drivers/net/ark/ark_ethdev_tx.c
index 1967655..08bcf43 100644
--- a/drivers/net/ark/ark_ethdev_tx.c
+++ b/drivers/net/ark/ark_ethdev_tx.c
@@ -211,9 +211,7 @@  eth_ark_tx_queue_setup(struct rte_eth_dev *dev,
 	struct ark_tx_queue *queue;
 	int status;
 
-	/* Future: divide the Q's evenly with multi-ports */
-	int port = dev->data->port_id;
-	int qidx = port + queue_idx;
+	int qidx = queue_idx;
 
 	if (!rte_is_power_of_2(nb_desc)) {
 		PMD_DRV_LOG(ERR,