[dpdk-dev] [PATCH] net/mlx5: fix doorbell release on Rx queue release

[dpdk-dev] [PATCH] net/mlx5: fix doorbell release on Rx queue release

[Dekel Peled]

Function mlx5_rxq_release() calls mlx5_release_dbr() to release the
doorbell allocated for this Rx queue.
This call is relevant only for Rx queue objects created using
DevX API.

This patch adds the required check, to call mlx5_release_dbr()
only when relevant.
It also updates mlx5_release_dbr() to use the input offset correctly.

Fixes: 69abf7b1db4a ("net/mlx5: create advanced RxQ using new API")

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
---
 drivers/net/mlx5/mlx5.c      | 1 +
 drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--
 drivers/net/mlx5/mlx5_rxtx.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 973c80a..8f9693c 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
 		rte_free(page);
 	} else {
 		/* Mark in bitmap that this door-bell is not in use. */
+		offset /= MLX5_DBR_SIZE;
 		int i = offset / 64;
 		int j = offset % 64;
 
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b225055..c9df8b0 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
 			goto error;
 		rxq_ctrl->dbr_offset = dbr_offset;
 		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
+		rxq_ctrl->dbr_umem_id_valid = 1;
 		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
 					       (uintptr_t)rxq_ctrl->dbr_offset);
 	}
@@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
 	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
 		rxq_ctrl->obj = NULL;
 	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
-		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
-					    rxq_ctrl->dbr_offset));
+		if (rxq_ctrl->dbr_umem_id_valid)
+			claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
+						    rxq_ctrl->dbr_offset));
 		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
 		LIST_REMOVE(rxq_ctrl, next);
 		rte_free(rxq_ctrl);
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 928d6c3..60d871c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
 	struct mlx5_priv *priv; /* Back pointer to private data. */
 	unsigned int socket; /* CPU socket ID for allocations. */
 	unsigned int irq:1; /* Whether IRQ is enabled. */
+	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid value. */
 	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this Queue. */
 	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels counters. */
 	uint32_t wqn; /* WQ number. */
-- 
1.8.3.1

Re: [dpdk-dev] [PATCH] net/mlx5: fix doorbell release on Rx queue release

[Slava Ovsiienko]

> -----Original Message-----
> From: Dekel Peled <dekelp@mellanox.com>
> Sent: Tuesday, July 23, 2019 17:55
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>; Shahaf Shuler <shahafs@mellanox.com>
> Cc: Ori Kam <orika@mellanox.com>; dev@dpdk.org
> Subject: [PATCH] net/mlx5: fix doorbell release on Rx queue release
> 
> Function mlx5_rxq_release() calls mlx5_release_dbr() to release the doorbell
> allocated for this Rx queue.
> This call is relevant only for Rx queue objects created using DevX API.
> 
> This patch adds the required check, to call mlx5_release_dbr() only when
> relevant.
> It also updates mlx5_release_dbr() to use the input offset correctly.
> 
> Fixes: 69abf7b1db4a ("net/mlx5: create advanced RxQ using new API")
> 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>

> ---
>  drivers/net/mlx5/mlx5.c      | 1 +
>  drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--  drivers/net/mlx5/mlx5_rxtx.h | 1 +
>  3 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> 973c80a..8f9693c 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
>  		rte_free(page);
>  	} else {
>  		/* Mark in bitmap that this door-bell is not in use. */
> +		offset /= MLX5_DBR_SIZE;
>  		int i = offset / 64;
>  		int j = offset % 64;
> 
> diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c index
> b225055..c9df8b0 100644
> --- a/drivers/net/mlx5/mlx5_rxq.c
> +++ b/drivers/net/mlx5/mlx5_rxq.c
> @@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
>  			goto error;
>  		rxq_ctrl->dbr_offset = dbr_offset;
>  		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
> +		rxq_ctrl->dbr_umem_id_valid = 1;
>  		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
>  					       (uintptr_t)rxq_ctrl->dbr_offset);
>  	}
> @@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
>  	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
>  		rxq_ctrl->obj = NULL;
>  	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
> -		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
> -					    rxq_ctrl->dbr_offset));
> +		if (rxq_ctrl->dbr_umem_id_valid)
> +			claim_zero(mlx5_release_dbr(dev, rxq_ctrl-
> >dbr_umem_id,
> +						    rxq_ctrl->dbr_offset));
>  		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
>  		LIST_REMOVE(rxq_ctrl, next);
>  		rte_free(rxq_ctrl);
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index 928d6c3..60d871c 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
>  	struct mlx5_priv *priv; /* Back pointer to private data. */
>  	unsigned int socket; /* CPU socket ID for allocations. */
>  	unsigned int irq:1; /* Whether IRQ is enabled. */
> +	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid
> value.
> +*/
>  	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this
> Queue. */
>  	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels
> counters. */
>  	uint32_t wqn; /* WQ number. */
> --
> 1.8.3.1

Re: [dpdk-dev] [PATCH] net/mlx5: fix doorbell release on Rx queue release

[Raslan Darawsheh]

Hi Dekel,

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Dekel Peled
> Sent: Tuesday, July 23, 2019 5:55 PM
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>; Shahaf Shuler <shahafs@mellanox.com>
> Cc: Ori Kam <orika@mellanox.com>; dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] net/mlx5: fix doorbell release on Rx queue
> release
> 
> Function mlx5_rxq_release() calls mlx5_release_dbr() to release the
> doorbell allocated for this Rx queue.
> This call is relevant only for Rx queue objects created using
> DevX API.
> 
> This patch adds the required check, to call mlx5_release_dbr()
> only when relevant.
> It also updates mlx5_release_dbr() to use the input offset correctly.
> 
> Fixes: 69abf7b1db4a ("net/mlx5: create advanced RxQ using new API")
>
Wrong 'Fixes' reference:
        Fixes: 69abf7b1db4a ("net/mlx5: create advanced RxQ using new API")
 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5.c      | 1 +
>  drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--
>  drivers/net/mlx5/mlx5_rxtx.h | 1 +
>  3 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
> index 973c80a..8f9693c 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
>  		rte_free(page);
>  	} else {
>  		/* Mark in bitmap that this door-bell is not in use. */
> +		offset /= MLX5_DBR_SIZE;
>  		int i = offset / 64;
>  		int j = offset % 64;
> 
> diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
> index b225055..c9df8b0 100644
> --- a/drivers/net/mlx5/mlx5_rxq.c
> +++ b/drivers/net/mlx5/mlx5_rxq.c
> @@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
>  			goto error;
>  		rxq_ctrl->dbr_offset = dbr_offset;
>  		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
> +		rxq_ctrl->dbr_umem_id_valid = 1;
>  		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
>  					       (uintptr_t)rxq_ctrl->dbr_offset);
>  	}
> @@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
>  	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
>  		rxq_ctrl->obj = NULL;
>  	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
> -		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
> -					    rxq_ctrl->dbr_offset));
> +		if (rxq_ctrl->dbr_umem_id_valid)
> +			claim_zero(mlx5_release_dbr(dev, rxq_ctrl-
> >dbr_umem_id,
> +						    rxq_ctrl->dbr_offset));
>  		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
>  		LIST_REMOVE(rxq_ctrl, next);
>  		rte_free(rxq_ctrl);
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index 928d6c3..60d871c 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
>  	struct mlx5_priv *priv; /* Back pointer to private data. */
>  	unsigned int socket; /* CPU socket ID for allocations. */
>  	unsigned int irq:1; /* Whether IRQ is enabled. */
> +	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid
> value. */
>  	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this
> Queue. */
>  	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels
> counters. */
>  	uint32_t wqn; /* WQ number. */
> --
> 1.8.3.1


Kindest regards,
Raslan Darawsheh

[dpdk-dev] [PATCH v2] net/mlx5: fix doorbell release on Rx queue release

[Dekel Peled]

Function mlx5_rxq_release() calls mlx5_release_dbr() to release the
doorbell allocated for this Rx queue.
This call is relevant only for Rx queue objects created using
DevX API.

This patch adds the required check, to call mlx5_release_dbr()
only when relevant.
It also updates mlx5_release_dbr() to use the input offset correctly.

Fixes: 69abf7b1db4a ("net/mlx5: create advanced RxQ using new API")

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
 drivers/net/mlx5/mlx5.c      | 1 +
 drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--
 drivers/net/mlx5/mlx5_rxtx.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 617f5ee..ad0883d 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
 		rte_free(page);
 	} else {
 		/* Mark in bitmap that this door-bell is not in use. */
+		offset /= MLX5_DBR_SIZE;
 		int i = offset / 64;
 		int j = offset % 64;
 
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b225055..c9df8b0 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
 			goto error;
 		rxq_ctrl->dbr_offset = dbr_offset;
 		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
+		rxq_ctrl->dbr_umem_id_valid = 1;
 		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
 					       (uintptr_t)rxq_ctrl->dbr_offset);
 	}
@@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
 	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
 		rxq_ctrl->obj = NULL;
 	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
-		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
-					    rxq_ctrl->dbr_offset));
+		if (rxq_ctrl->dbr_umem_id_valid)
+			claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
+						    rxq_ctrl->dbr_offset));
 		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
 		LIST_REMOVE(rxq_ctrl, next);
 		rte_free(rxq_ctrl);
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 928d6c3..60d871c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
 	struct mlx5_priv *priv; /* Back pointer to private data. */
 	unsigned int socket; /* CPU socket ID for allocations. */
 	unsigned int irq:1; /* Whether IRQ is enabled. */
+	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid value. */
 	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this Queue. */
 	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels counters. */
 	uint32_t wqn; /* WQ number. */
-- 
1.8.3.1

[dpdk-dev] [PATCH v3] net/mlx5: fix doorbell release on Rx queue release

[Dekel Peled]

Function mlx5_rxq_release() calls mlx5_release_dbr() to release the
doorbell allocated for this Rx queue.
This call is relevant only for Rx queue objects created using
DevX API.

This patch adds the required check, to call mlx5_release_dbr()
only when relevant.
It also updates mlx5_release_dbr() to use the input offset correctly.

Fixes: 13f4e1b32137 ("net/mlx5: create advanced RxQ using new API")

---
v3: Use adequate 'Fixes' reference.
---

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
---
 drivers/net/mlx5/mlx5.c      | 1 +
 drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--
 drivers/net/mlx5/mlx5_rxtx.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 617f5ee..ad0883d 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
 		rte_free(page);
 	} else {
 		/* Mark in bitmap that this door-bell is not in use. */
+		offset /= MLX5_DBR_SIZE;
 		int i = offset / 64;
 		int j = offset % 64;
 
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b225055..c9df8b0 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
 			goto error;
 		rxq_ctrl->dbr_offset = dbr_offset;
 		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
+		rxq_ctrl->dbr_umem_id_valid = 1;
 		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
 					       (uintptr_t)rxq_ctrl->dbr_offset);
 	}
@@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
 	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
 		rxq_ctrl->obj = NULL;
 	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
-		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
-					    rxq_ctrl->dbr_offset));
+		if (rxq_ctrl->dbr_umem_id_valid)
+			claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
+						    rxq_ctrl->dbr_offset));
 		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
 		LIST_REMOVE(rxq_ctrl, next);
 		rte_free(rxq_ctrl);
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 928d6c3..60d871c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
 	struct mlx5_priv *priv; /* Back pointer to private data. */
 	unsigned int socket; /* CPU socket ID for allocations. */
 	unsigned int irq:1; /* Whether IRQ is enabled. */
+	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid value. */
 	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this Queue. */
 	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels counters. */
 	uint32_t wqn; /* WQ number. */
-- 
1.8.3.1

Re: [dpdk-dev] [PATCH v3] net/mlx5: fix doorbell release on Rx queue release

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Dekel Peled
> Sent: Wednesday, July 24, 2019 12:05 PM
> To: Yongseok Koh <yskoh@mellanox.com>; Slava Ovsiienko
> <viacheslavo@mellanox.com>; Shahaf Shuler <shahafs@mellanox.com>
> Cc: Ori Kam <orika@mellanox.com>; dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v3] net/mlx5: fix doorbell release on Rx queue
> release
> 
> Function mlx5_rxq_release() calls mlx5_release_dbr() to release the doorbell
> allocated for this Rx queue.
> This call is relevant only for Rx queue objects created using DevX API.
> 
> This patch adds the required check, to call mlx5_release_dbr() only when
> relevant.
> It also updates mlx5_release_dbr() to use the input offset correctly.
> 
> Fixes: 13f4e1b32137 ("net/mlx5: create advanced RxQ using new API")
> 
> ---
> v3: Use adequate 'Fixes' reference.
> ---
> 
> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5.c      | 1 +
>  drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--  drivers/net/mlx5/mlx5_rxtx.h | 1 +
>  3 files changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> 617f5ee..ad0883d 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
>  		rte_free(page);
>  	} else {
>  		/* Mark in bitmap that this door-bell is not in use. */
> +		offset /= MLX5_DBR_SIZE;
>  		int i = offset / 64;
>  		int j = offset % 64;
> 
> diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
> index b225055..c9df8b0 100644
> --- a/drivers/net/mlx5/mlx5_rxq.c
> +++ b/drivers/net/mlx5/mlx5_rxq.c
> @@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
>  			goto error;
>  		rxq_ctrl->dbr_offset = dbr_offset;
>  		rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
> +		rxq_ctrl->dbr_umem_id_valid = 1;
>  		rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
>  					       (uintptr_t)rxq_ctrl->dbr_offset);
>  	}
> @@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
>  	if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
>  		rxq_ctrl->obj = NULL;
>  	if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
> -		claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
> -					    rxq_ctrl->dbr_offset));
> +		if (rxq_ctrl->dbr_umem_id_valid)
> +			claim_zero(mlx5_release_dbr(dev, rxq_ctrl-
> >dbr_umem_id,
> +						    rxq_ctrl->dbr_offset));
>  		mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
>  		LIST_REMOVE(rxq_ctrl, next);
>  		rte_free(rxq_ctrl);
> diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
> index 928d6c3..60d871c 100644
> --- a/drivers/net/mlx5/mlx5_rxtx.h
> +++ b/drivers/net/mlx5/mlx5_rxtx.h
> @@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
>  	struct mlx5_priv *priv; /* Back pointer to private data. */
>  	unsigned int socket; /* CPU socket ID for allocations. */
>  	unsigned int irq:1; /* Whether IRQ is enabled. */
> +	unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid
> value.
> +*/
>  	uint32_t flow_mark_n; /* Number of Mark/Flag flows using this
> Queue. */
>  	uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels
> counters. */
>  	uint32_t wqn; /* WQ number. */
> --
> 1.8.3.1


Patch applied to dpdk-next-net-mlx,

Kindest regards,
Raslan Darawsheh

Re: [dpdk-dev] [PATCH v3] net/mlx5: fix doorbell release on Rx queue release

[Matan Azrad]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="iso-8859-8-i", Size: 3564 bytes --]



äùâ àú Outlook òáåø Android<https://aka.ms/ghei36>



îàú: Dekel Peled
ðùìç: éåí øáéòé, 24 áéåìé, 12:05
ðåùà: [dpdk-dev] [PATCH v3] net/mlx5: fix doorbell release on Rx queuerelease
àì: Yongseok Koh, Slava Ovsiienko, Shahaf Shuler
òåú÷: Ori Kam, dev@dpdk.org


Function mlx5_rxq_release() calls mlx5_release_dbr() to release the
doorbell allocated for this Rx queue.
This call is relevant only for Rx queue objects created using
DevX API.

This patch adds the required check, to call mlx5_release_dbr()
only when relevant.
It also updates mlx5_release_dbr() to use the input offset correctly.

Fixes: 13f4e1b32137 ("net/mlx5: create advanced RxQ using new API")

---
v3: Use adequate 'Fixes' reference.
---

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
---
 drivers/net/mlx5/mlx5.c      | 1 +
 drivers/net/mlx5/mlx5_rxq.c  | 6 ++++--
 drivers/net/mlx5/mlx5_rxtx.h | 1 +
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index 617f5ee..ad0883d 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -1460,6 +1460,7 @@ struct mlx5_dev_spawn_data {
                 rte_free(page);
         } else {
                 /* Mark in bitmap that this door-bell is not in use. */
+               offset /= MLX5_DBR_SIZE;
                 int i = offset / 64;
                 int j = offset % 64;

diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index b225055..c9df8b0 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -1242,6 +1242,7 @@ struct mlx5_rxq_obj *
                         goto error;
                 rxq_ctrl->dbr_offset = dbr_offset;
                 rxq_ctrl->dbr_umem_id = dbr_page->umem->umem_id;
+               rxq_ctrl->dbr_umem_id_valid = 1;
                 rxq_data->rq_db = (uint32_t *)((uintptr_t)dbr_page->dbrs +
                                                (uintptr_t)rxq_ctrl->dbr_offset);
         }
@@ -1829,8 +1830,9 @@ struct mlx5_rxq_ctrl *
         if (rxq_ctrl->obj && !mlx5_rxq_obj_release(rxq_ctrl->obj))
                 rxq_ctrl->obj = NULL;
         if (rte_atomic32_dec_and_test(&rxq_ctrl->refcnt)) {
-               claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
-                                           rxq_ctrl->dbr_offset));
+               if (rxq_ctrl->dbr_umem_id_valid)
+                       claim_zero(mlx5_release_dbr(dev, rxq_ctrl->dbr_umem_id,
+                                                   rxq_ctrl->dbr_offset));
                 mlx5_mr_btree_free(&rxq_ctrl->rxq.mr_ctrl.cache_bh);
                 LIST_REMOVE(rxq_ctrl, next);
                 rte_free(rxq_ctrl);
diff --git a/drivers/net/mlx5/mlx5_rxtx.h b/drivers/net/mlx5/mlx5_rxtx.h
index 928d6c3..60d871c 100644
--- a/drivers/net/mlx5/mlx5_rxtx.h
+++ b/drivers/net/mlx5/mlx5_rxtx.h
@@ -184,6 +184,7 @@ struct mlx5_rxq_ctrl {
         struct mlx5_priv *priv; /* Back pointer to private data. */
         unsigned int socket; /* CPU socket ID for allocations. */
         unsigned int irq:1; /* Whether IRQ is enabled. */
+       unsigned int dbr_umem_id_valid:1; /* dbr_umem_id holds a valid value. */
         uint32_t flow_mark_n; /* Number of Mark/Flag flows using this Queue. */
         uint32_t flow_tunnels_n[MLX5_FLOW_TUNNEL]; /* Tunnels counters. */
         uint32_t wqn; /* WQ number. */
--
1.8.3.1