* [PATCH] dma/skeleton: support multiple instances
@ 2022-03-28 14:23 Sivaprasad Tummala
2022-03-28 14:40 ` Varghese, Vipin
0 siblings, 1 reply; 5+ messages in thread
From: Sivaprasad Tummala @ 2022-03-28 14:23 UTC (permalink / raw)
To: fengchengwen; +Cc: dev, Sivaprasad Tummala
dpdk app can support multiple hardware dma instances.
with dma skeleton, only a single instance can be configured.
This patch supports multiple driver instances per device.
Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
---
drivers/dma/skeleton/skeleton_dmadev.c | 37 +++++++++++++++-----------
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
index 81cbdd286e..6b1c01d89c 100644
--- a/drivers/dma/skeleton/skeleton_dmadev.c
+++ b/drivers/dma/skeleton/skeleton_dmadev.c
@@ -100,6 +100,7 @@ static int
skeldma_start(struct rte_dma_dev *dev)
{
struct skeldma_hw *hw = dev->data->dev_private;
+ char name[RTE_MAX_THREAD_NAME_LEN];
rte_cpuset_t cpuset;
int ret;
@@ -125,7 +126,8 @@ skeldma_start(struct rte_dma_dev *dev)
rte_mb();
- ret = rte_ctrl_thread_create(&hw->thread, "dma_skeleton", NULL,
+ snprintf(name, sizeof(name), "dma_skel_%d", dev->data->dev_id);
+ ret = rte_ctrl_thread_create(&hw->thread, name, NULL,
cpucopy_thread, dev);
if (ret) {
SKELDMA_LOG(ERR, "Start cpucopy thread fail!");
@@ -160,7 +162,7 @@ skeldma_stop(struct rte_dma_dev *dev)
}
static int
-vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
+vchan_setup(struct skeldma_hw *hw, int16_t dev_id, uint16_t nb_desc)
{
struct skeldma_desc *desc;
struct rte_ring *empty;
@@ -168,8 +170,12 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
struct rte_ring *running;
struct rte_ring *completed;
uint16_t i;
+ char pool_name[RTE_RING_NAMESIZE];
+ char ring_name[RTE_RING_NAMESIZE];
- desc = rte_zmalloc_socket("dma_skeleton_desc",
+ snprintf(pool_name, RTE_RING_NAMESIZE, "dma_skel_desc_pool_%d",
+ dev_id);
+ desc = rte_zmalloc_socket(pool_name,
nb_desc * sizeof(struct skeldma_desc),
RTE_CACHE_LINE_SIZE, hw->socket_id);
if (desc == NULL) {
@@ -177,13 +183,21 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
return -ENOMEM;
}
- empty = rte_ring_create("dma_skeleton_desc_empty", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_empty_%d",
+ dev_id);
+ empty = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- pending = rte_ring_create("dma_skeleton_desc_pending", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_pend_%d",
+ dev_id);
+ pending = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- running = rte_ring_create("dma_skeleton_desc_running", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_run_%d",
+ dev_id);
+ running = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- completed = rte_ring_create("dma_skeleton_desc_completed", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_comp_%d",
+ dev_id);
+ completed = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
if (empty == NULL || pending == NULL || running == NULL ||
completed == NULL) {
@@ -254,7 +268,7 @@ skeldma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
}
vchan_release(hw);
- return vchan_setup(hw, conf->nb_desc);
+ return vchan_setup(hw, dev->data->dev_id, conf->nb_desc);
}
static int
@@ -548,13 +562,6 @@ skeldma_probe(struct rte_vdev_device *vdev)
return -EINVAL;
}
- /* More than one instance is not supported */
- if (skeldma_count > 0) {
- SKELDMA_LOG(ERR, "Multiple instance not supported for %s",
- name);
- return -EINVAL;
- }
-
skeldma_parse_vdev_args(vdev, &lcore_id);
ret = skeldma_create(name, vdev, lcore_id);
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread* RE: [PATCH] dma/skeleton: support multiple instances
2022-03-28 14:23 [PATCH] dma/skeleton: support multiple instances Sivaprasad Tummala
@ 2022-03-28 14:40 ` Varghese, Vipin
2022-06-07 10:49 ` Thomas Monjalon
0 siblings, 1 reply; 5+ messages in thread
From: Varghese, Vipin @ 2022-03-28 14:40 UTC (permalink / raw)
To: Tummala, Sivaprasad, fengchengwen; +Cc: dev, Tummala, Sivaprasad
[AMD Official Use Only]
Verified on ` AMD EPYC 7713 64-Core Processor` platform with argument ` --vdev=dma_skeleton0,lcore=4 --vdev=dma_skeleton1,lcore=5`.
Tested-by: Vipin Varghese <Vipin.Varghese@amd.com>
-----Original Message-----
From: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
Sent: Monday, March 28, 2022 7:53 PM
To: fengchengwen@huawei.com
Cc: dev@dpdk.org; Tummala, Sivaprasad <Sivaprasad.Tummala@amd.com>
Subject: [PATCH] dma/skeleton: support multiple instances
[CAUTION: External Email]
dpdk app can support multiple hardware dma instances.
with dma skeleton, only a single instance can be configured.
This patch supports multiple driver instances per device.
Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
---
drivers/dma/skeleton/skeleton_dmadev.c | 37 +++++++++++++++-----------
1 file changed, 22 insertions(+), 15 deletions(-)
diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
index 81cbdd286e..6b1c01d89c 100644
--- a/drivers/dma/skeleton/skeleton_dmadev.c
+++ b/drivers/dma/skeleton/skeleton_dmadev.c
@@ -100,6 +100,7 @@ static int
skeldma_start(struct rte_dma_dev *dev)
{
struct skeldma_hw *hw = dev->data->dev_private;
+ char name[RTE_MAX_THREAD_NAME_LEN];
rte_cpuset_t cpuset;
int ret;
@@ -125,7 +126,8 @@ skeldma_start(struct rte_dma_dev *dev)
rte_mb();
- ret = rte_ctrl_thread_create(&hw->thread, "dma_skeleton", NULL,
+ snprintf(name, sizeof(name), "dma_skel_%d", dev->data->dev_id);
+ ret = rte_ctrl_thread_create(&hw->thread, name, NULL,
cpucopy_thread, dev);
if (ret) {
SKELDMA_LOG(ERR, "Start cpucopy thread fail!"); @@ -160,7 +162,7 @@ skeldma_stop(struct rte_dma_dev *dev) }
static int
-vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
+vchan_setup(struct skeldma_hw *hw, int16_t dev_id, uint16_t nb_desc)
{
struct skeldma_desc *desc;
struct rte_ring *empty;
@@ -168,8 +170,12 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
struct rte_ring *running;
struct rte_ring *completed;
uint16_t i;
+ char pool_name[RTE_RING_NAMESIZE];
+ char ring_name[RTE_RING_NAMESIZE];
- desc = rte_zmalloc_socket("dma_skeleton_desc",
+ snprintf(pool_name, RTE_RING_NAMESIZE, "dma_skel_desc_pool_%d",
+ dev_id);
+ desc = rte_zmalloc_socket(pool_name,
nb_desc * sizeof(struct skeldma_desc),
RTE_CACHE_LINE_SIZE, hw->socket_id);
if (desc == NULL) {
@@ -177,13 +183,21 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
return -ENOMEM;
}
- empty = rte_ring_create("dma_skeleton_desc_empty", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_empty_%d",
+ dev_id);
+ empty = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- pending = rte_ring_create("dma_skeleton_desc_pending", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_pend_%d",
+ dev_id);
+ pending = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- running = rte_ring_create("dma_skeleton_desc_running", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_run_%d",
+ dev_id);
+ running = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- completed = rte_ring_create("dma_skeleton_desc_completed", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_comp_%d",
+ dev_id);
+ completed = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
if (empty == NULL || pending == NULL || running == NULL ||
completed == NULL) {
@@ -254,7 +268,7 @@ skeldma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
}
vchan_release(hw);
- return vchan_setup(hw, conf->nb_desc);
+ return vchan_setup(hw, dev->data->dev_id, conf->nb_desc);
}
static int
@@ -548,13 +562,6 @@ skeldma_probe(struct rte_vdev_device *vdev)
return -EINVAL;
}
- /* More than one instance is not supported */
- if (skeldma_count > 0) {
- SKELDMA_LOG(ERR, "Multiple instance not supported for %s",
- name);
- return -EINVAL;
- }
-
skeldma_parse_vdev_args(vdev, &lcore_id);
ret = skeldma_create(name, vdev, lcore_id);
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] dma/skeleton: support multiple instances
2022-03-28 14:40 ` Varghese, Vipin
@ 2022-06-07 10:49 ` Thomas Monjalon
2022-06-08 7:10 ` fengchengwen
0 siblings, 1 reply; 5+ messages in thread
From: Thomas Monjalon @ 2022-06-07 10:49 UTC (permalink / raw)
To: fengchengwen
Cc: Tummala, Sivaprasad, dev, Tummala, Sivaprasad, Varghese, Vipin
Chengwen, as the maintainer of this driver, what do you think?
28/03/2022 16:40, Varghese, Vipin:
> [AMD Official Use Only]
>
> Verified on ` AMD EPYC 7713 64-Core Processor` platform with argument ` --vdev=dma_skeleton0,lcore=4 --vdev=dma_skeleton1,lcore=5`.
>
> Tested-by: Vipin Varghese <Vipin.Varghese@amd.com>
>
> -----Original Message-----
> From: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
> Sent: Monday, March 28, 2022 7:53 PM
> To: fengchengwen@huawei.com
> Cc: dev@dpdk.org; Tummala, Sivaprasad <Sivaprasad.Tummala@amd.com>
> Subject: [PATCH] dma/skeleton: support multiple instances
>
> [CAUTION: External Email]
>
> dpdk app can support multiple hardware dma instances.
> with dma skeleton, only a single instance can be configured.
>
> This patch supports multiple driver instances per device.
>
> Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
> ---
> drivers/dma/skeleton/skeleton_dmadev.c | 37 +++++++++++++++-----------
> 1 file changed, 22 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
> index 81cbdd286e..6b1c01d89c 100644
> --- a/drivers/dma/skeleton/skeleton_dmadev.c
> +++ b/drivers/dma/skeleton/skeleton_dmadev.c
> @@ -100,6 +100,7 @@ static int
> skeldma_start(struct rte_dma_dev *dev)
> {
> struct skeldma_hw *hw = dev->data->dev_private;
> + char name[RTE_MAX_THREAD_NAME_LEN];
> rte_cpuset_t cpuset;
> int ret;
>
> @@ -125,7 +126,8 @@ skeldma_start(struct rte_dma_dev *dev)
>
> rte_mb();
>
> - ret = rte_ctrl_thread_create(&hw->thread, "dma_skeleton", NULL,
> + snprintf(name, sizeof(name), "dma_skel_%d", dev->data->dev_id);
> + ret = rte_ctrl_thread_create(&hw->thread, name, NULL,
> cpucopy_thread, dev);
> if (ret) {
> SKELDMA_LOG(ERR, "Start cpucopy thread fail!"); @@ -160,7 +162,7 @@ skeldma_stop(struct rte_dma_dev *dev) }
>
> static int
> -vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
> +vchan_setup(struct skeldma_hw *hw, int16_t dev_id, uint16_t nb_desc)
> {
> struct skeldma_desc *desc;
> struct rte_ring *empty;
> @@ -168,8 +170,12 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
> struct rte_ring *running;
> struct rte_ring *completed;
> uint16_t i;
> + char pool_name[RTE_RING_NAMESIZE];
> + char ring_name[RTE_RING_NAMESIZE];
>
> - desc = rte_zmalloc_socket("dma_skeleton_desc",
> + snprintf(pool_name, RTE_RING_NAMESIZE, "dma_skel_desc_pool_%d",
> + dev_id);
> + desc = rte_zmalloc_socket(pool_name,
> nb_desc * sizeof(struct skeldma_desc),
> RTE_CACHE_LINE_SIZE, hw->socket_id);
> if (desc == NULL) {
> @@ -177,13 +183,21 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
> return -ENOMEM;
> }
>
> - empty = rte_ring_create("dma_skeleton_desc_empty", nb_desc,
> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_empty_%d",
> + dev_id);
> + empty = rte_ring_create(ring_name, nb_desc,
> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
> - pending = rte_ring_create("dma_skeleton_desc_pending", nb_desc,
> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_pend_%d",
> + dev_id);
> + pending = rte_ring_create(ring_name, nb_desc,
> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
> - running = rte_ring_create("dma_skeleton_desc_running", nb_desc,
> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_run_%d",
> + dev_id);
> + running = rte_ring_create(ring_name, nb_desc,
> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
> - completed = rte_ring_create("dma_skeleton_desc_completed", nb_desc,
> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_comp_%d",
> + dev_id);
> + completed = rte_ring_create(ring_name, nb_desc,
> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
> if (empty == NULL || pending == NULL || running == NULL ||
> completed == NULL) {
> @@ -254,7 +268,7 @@ skeldma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
> }
>
> vchan_release(hw);
> - return vchan_setup(hw, conf->nb_desc);
> + return vchan_setup(hw, dev->data->dev_id, conf->nb_desc);
> }
>
> static int
> @@ -548,13 +562,6 @@ skeldma_probe(struct rte_vdev_device *vdev)
> return -EINVAL;
> }
>
> - /* More than one instance is not supported */
> - if (skeldma_count > 0) {
> - SKELDMA_LOG(ERR, "Multiple instance not supported for %s",
> - name);
> - return -EINVAL;
> - }
> -
> skeldma_parse_vdev_args(vdev, &lcore_id);
>
> ret = skeldma_create(name, vdev, lcore_id);
> --
> 2.17.1
>
^ permalink raw reply [flat|nested] 5+ messages in thread* Re: [PATCH] dma/skeleton: support multiple instances
2022-06-07 10:49 ` Thomas Monjalon
@ 2022-06-08 7:10 ` fengchengwen
0 siblings, 0 replies; 5+ messages in thread
From: fengchengwen @ 2022-06-08 7:10 UTC (permalink / raw)
To: Thomas Monjalon; +Cc: Tummala, Sivaprasad, dev, Varghese, Vipin
This patch LGTM, but it forget remove skeldma_count variable.
Also I find the skeleton_dma has the same bug with [1], So I will
send a patchset which contains this patch (add my reviewed-by).
Sivaprasad, Vipin, thanks for your work.
[1] dma/hisilicon: fix return last-idx when no DMA completed
On 2022/6/7 18:49, Thomas Monjalon wrote:
> Chengwen, as the maintainer of this driver, what do you think?
>
>
> 28/03/2022 16:40, Varghese, Vipin:
>> [AMD Official Use Only]
>>
>> Verified on ` AMD EPYC 7713 64-Core Processor` platform with argument ` --vdev=dma_skeleton0,lcore=4 --vdev=dma_skeleton1,lcore=5`.
>>
>> Tested-by: Vipin Varghese <Vipin.Varghese@amd.com>
>>
>> -----Original Message-----
>> From: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
>> Sent: Monday, March 28, 2022 7:53 PM
>> To: fengchengwen@huawei.com
>> Cc: dev@dpdk.org; Tummala, Sivaprasad <Sivaprasad.Tummala@amd.com>
>> Subject: [PATCH] dma/skeleton: support multiple instances
>>
>> [CAUTION: External Email]
>>
>> dpdk app can support multiple hardware dma instances.
>> with dma skeleton, only a single instance can be configured.
>>
>> This patch supports multiple driver instances per device.
>>
>> Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
>> ---
>> drivers/dma/skeleton/skeleton_dmadev.c | 37 +++++++++++++++-----------
>> 1 file changed, 22 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
>> index 81cbdd286e..6b1c01d89c 100644
>> --- a/drivers/dma/skeleton/skeleton_dmadev.c
>> +++ b/drivers/dma/skeleton/skeleton_dmadev.c
>> @@ -100,6 +100,7 @@ static int
>> skeldma_start(struct rte_dma_dev *dev)
>> {
>> struct skeldma_hw *hw = dev->data->dev_private;
>> + char name[RTE_MAX_THREAD_NAME_LEN];
>> rte_cpuset_t cpuset;
>> int ret;
>>
>> @@ -125,7 +126,8 @@ skeldma_start(struct rte_dma_dev *dev)
>>
>> rte_mb();
>>
>> - ret = rte_ctrl_thread_create(&hw->thread, "dma_skeleton", NULL,
>> + snprintf(name, sizeof(name), "dma_skel_%d", dev->data->dev_id);
>> + ret = rte_ctrl_thread_create(&hw->thread, name, NULL,
>> cpucopy_thread, dev);
>> if (ret) {
>> SKELDMA_LOG(ERR, "Start cpucopy thread fail!"); @@ -160,7 +162,7 @@ skeldma_stop(struct rte_dma_dev *dev) }
>>
>> static int
>> -vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
>> +vchan_setup(struct skeldma_hw *hw, int16_t dev_id, uint16_t nb_desc)
>> {
>> struct skeldma_desc *desc;
>> struct rte_ring *empty;
>> @@ -168,8 +170,12 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
>> struct rte_ring *running;
>> struct rte_ring *completed;
>> uint16_t i;
>> + char pool_name[RTE_RING_NAMESIZE];
>> + char ring_name[RTE_RING_NAMESIZE];
>>
>> - desc = rte_zmalloc_socket("dma_skeleton_desc",
>> + snprintf(pool_name, RTE_RING_NAMESIZE, "dma_skel_desc_pool_%d",
>> + dev_id);
>> + desc = rte_zmalloc_socket(pool_name,
>> nb_desc * sizeof(struct skeldma_desc),
>> RTE_CACHE_LINE_SIZE, hw->socket_id);
>> if (desc == NULL) {
>> @@ -177,13 +183,21 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
>> return -ENOMEM;
>> }
>>
>> - empty = rte_ring_create("dma_skeleton_desc_empty", nb_desc,
>> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_empty_%d",
>> + dev_id);
>> + empty = rte_ring_create(ring_name, nb_desc,
>> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
>> - pending = rte_ring_create("dma_skeleton_desc_pending", nb_desc,
>> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_pend_%d",
>> + dev_id);
>> + pending = rte_ring_create(ring_name, nb_desc,
>> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
>> - running = rte_ring_create("dma_skeleton_desc_running", nb_desc,
>> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_run_%d",
>> + dev_id);
>> + running = rte_ring_create(ring_name, nb_desc,
>> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
>> - completed = rte_ring_create("dma_skeleton_desc_completed", nb_desc,
>> + snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_comp_%d",
>> + dev_id);
>> + completed = rte_ring_create(ring_name, nb_desc,
>> hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
>> if (empty == NULL || pending == NULL || running == NULL ||
>> completed == NULL) {
>> @@ -254,7 +268,7 @@ skeldma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
>> }
>>
>> vchan_release(hw);
>> - return vchan_setup(hw, conf->nb_desc);
>> + return vchan_setup(hw, dev->data->dev_id, conf->nb_desc);
>> }
>>
>> static int
>> @@ -548,13 +562,6 @@ skeldma_probe(struct rte_vdev_device *vdev)
>> return -EINVAL;
>> }
>>
>> - /* More than one instance is not supported */
>> - if (skeldma_count > 0) {
>> - SKELDMA_LOG(ERR, "Multiple instance not supported for %s",
>> - name);
>> - return -EINVAL;
>> - }
>> -
>> skeldma_parse_vdev_args(vdev, &lcore_id);
>>
>> ret = skeldma_create(name, vdev, lcore_id);
>> --
>> 2.17.1
>>
>
>
>
>
>
>
> .
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] dma/skeleton: support multiple instances
@ 2022-03-28 12:53 Sivaprasad Tummala
0 siblings, 0 replies; 5+ messages in thread
From: Sivaprasad Tummala @ 2022-03-28 12:53 UTC (permalink / raw)
To: fengchengwen; +Cc: dev, Sivaprasad Tummala
dpdk app can support multiple hardware dma instances.
with dma skeleton, only a single instance can be configured.
This patch supports multiple driver instances per device.
Signed-off-by: Sivaprasad Tummala <Sivaprasad.Tummala@amd.com>
---
drivers/dma/skeleton/skeleton_dmadev.c | 41 +++++++++++++++-----------
1 file changed, 24 insertions(+), 17 deletions(-)
diff --git a/drivers/dma/skeleton/skeleton_dmadev.c b/drivers/dma/skeleton/skeleton_dmadev.c
index d9e4f731d7..a1847571c1 100644
--- a/drivers/dma/skeleton/skeleton_dmadev.c
+++ b/drivers/dma/skeleton/skeleton_dmadev.c
@@ -100,6 +100,7 @@ static int
skeldma_start(struct rte_dma_dev *dev)
{
struct skeldma_hw *hw = dev->data->dev_private;
+ char name[RTE_MAX_THREAD_NAME_LEN];
rte_cpuset_t cpuset;
int ret;
@@ -125,7 +126,8 @@ skeldma_start(struct rte_dma_dev *dev)
rte_mb();
- ret = rte_ctrl_thread_create(&hw->thread, "dma_skeleton", NULL,
+ snprintf(name, sizeof(name), "dma_skel_%d", dev->data->dev_id);
+ ret = rte_ctrl_thread_create(&hw->thread, name, NULL,
cpucopy_thread, dev);
if (ret) {
SKELDMA_LOG(ERR, "Start cpucopy thread fail!");
@@ -160,7 +162,7 @@ skeldma_stop(struct rte_dma_dev *dev)
}
static int
-vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
+vchan_setup(struct skeldma_hw *hw, int16_t dev_id, uint16_t nb_desc)
{
struct skeldma_desc *desc;
struct rte_ring *empty;
@@ -168,8 +170,12 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
struct rte_ring *running;
struct rte_ring *completed;
uint16_t i;
+ char pool_name[RTE_RING_NAMESIZE];
+ char ring_name[RTE_RING_NAMESIZE];
- desc = rte_zmalloc_socket("dma_skelteon_desc",
+ snprintf(pool_name, RTE_RING_NAMESIZE, "dma_skel_desc_pool_%d",
+ dev_id);
+ desc = rte_zmalloc_socket(pool_name,
nb_desc * sizeof(struct skeldma_desc),
RTE_CACHE_LINE_SIZE, hw->socket_id);
if (desc == NULL) {
@@ -177,13 +183,21 @@ vchan_setup(struct skeldma_hw *hw, uint16_t nb_desc)
return -ENOMEM;
}
- empty = rte_ring_create("dma_skeleton_desc_empty", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_empty_%d",
+ dev_id);
+ empty = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- pending = rte_ring_create("dma_skeleton_desc_pending", nb_desc,
- hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- running = rte_ring_create("dma_skeleton_desc_running", nb_desc,
- hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
- completed = rte_ring_create("dma_skeleton_desc_completed", nb_desc,
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_pend_%d",
+ dev_id);
+ pending = rte_ring_create(ring_name, nb_desc,
+ hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_run_%d",
+ dev_id);
+ running = rte_ring_create(ring_name, nb_desc,
+ hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
+ snprintf(ring_name, RTE_RING_NAMESIZE, "dma_skel_desc_comp_%d",
+ dev_id);
+ completed = rte_ring_create(ring_name, nb_desc,
hw->socket_id, RING_F_SP_ENQ | RING_F_SC_DEQ);
if (empty == NULL || pending == NULL || running == NULL ||
completed == NULL) {
@@ -254,7 +268,7 @@ skeldma_vchan_setup(struct rte_dma_dev *dev, uint16_t vchan,
}
vchan_release(hw);
- return vchan_setup(hw, conf->nb_desc);
+ return vchan_setup(hw, dev->data->dev_id, conf->nb_desc);
}
static int
@@ -548,13 +562,6 @@ skeldma_probe(struct rte_vdev_device *vdev)
return -EINVAL;
}
- /* More than one instance is not supported */
- if (skeldma_count > 0) {
- SKELDMA_LOG(ERR, "Multiple instance not supported for %s",
- name);
- return -EINVAL;
- }
-
skeldma_parse_vdev_args(vdev, &lcore_id);
ret = skeldma_create(name, vdev, lcore_id);
--
2.17.1
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-06-08 7:10 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2022-03-28 14:23 [PATCH] dma/skeleton: support multiple instances Sivaprasad Tummala
2022-03-28 14:40 ` Varghese, Vipin
2022-06-07 10:49 ` Thomas Monjalon
2022-06-08 7:10 ` fengchengwen
-- strict thread matches above, loose matches on Subject: below --
2022-03-28 12:53 Sivaprasad Tummala
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