From: Michael Baum <michaelba@nvidia.com>
To: dev@dpdk.org
Cc: Matan Azrad <matan@nvidia.com>,
Raslan Darawsheh <rasland@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
stable@dpdk.org
Subject: [dpdk-stable] [PATCH 1/2] net/mlx5: workaround ASO memory region creation
Date: Thu, 18 Mar 2021 09:56:07 +0000 [thread overview]
Message-ID: <1616061368-29768-2-git-send-email-michaelba@nvidia.com> (raw)
In-Reply-To: <1616061368-29768-1-git-send-email-michaelba@nvidia.com>
Due to kernel issue in direct MKEY creation using the DevX API for
physical memory, this patch replaces the ASO MR creation to use Verbs
API.
Fixes: f935ed4b645a ("net/mlx5: support flow hit action for aging")
Cc: stable@dpdk.org
Signed-off-by: Michael Baum <michaelba@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
drivers/common/mlx5/linux/mlx5_common_verbs.c | 1 -
drivers/common/mlx5/windows/mlx5_common_os.c | 23 +++---
drivers/net/mlx5/mlx5.h | 10 +--
drivers/net/mlx5/mlx5_flow_age.c | 106 +++++++++++---------------
4 files changed, 58 insertions(+), 82 deletions(-)
diff --git a/drivers/common/mlx5/linux/mlx5_common_verbs.c b/drivers/common/mlx5/linux/mlx5_common_verbs.c
index 339535d..aa560f0 100644
--- a/drivers/common/mlx5/linux/mlx5_common_verbs.c
+++ b/drivers/common/mlx5/linux/mlx5_common_verbs.c
@@ -37,7 +37,6 @@
{
struct ibv_mr *ibv_mr;
- memset(pmd_mr, 0, sizeof(*pmd_mr));
ibv_mr = mlx5_glue->reg_mr(pd, addr, length,
IBV_ACCESS_LOCAL_WRITE |
(haswell_broadwell_cpu ? 0 :
diff --git a/drivers/common/mlx5/windows/mlx5_common_os.c b/drivers/common/mlx5/windows/mlx5_common_os.c
index f2d781a..cebf42d 100644
--- a/drivers/common/mlx5/windows/mlx5_common_os.c
+++ b/drivers/common/mlx5/windows/mlx5_common_os.c
@@ -155,23 +155,22 @@
struct mlx5_devx_mkey_attr mkey_attr;
struct mlx5_pd *mlx5_pd = (struct mlx5_pd *)pd;
struct mlx5_hca_attr attr;
+ struct mlx5_devx_obj *mkey;
+ void *obj;
if (!pd || !addr) {
rte_errno = EINVAL;
return -1;
}
- memset(pmd_mr, 0, sizeof(*pmd_mr));
if (mlx5_devx_cmd_query_hca_attr(mlx5_pd->devx_ctx, &attr))
return -1;
- pmd_mr->addr = addr;
- pmd_mr->len = length;
- pmd_mr->obj = mlx5_os_umem_reg(mlx5_pd->devx_ctx, pmd_mr->addr,
- pmd_mr->len, IBV_ACCESS_LOCAL_WRITE);
- if (!pmd_mr->obj)
+ obj = mlx5_os_umem_reg(mlx5_pd->devx_ctx, addr, length,
+ IBV_ACCESS_LOCAL_WRITE);
+ if (!obj)
return -1;
mkey_attr.addr = (uintptr_t)addr;
mkey_attr.size = length;
- mkey_attr.umem_id = ((struct mlx5_devx_umem *)(pmd_mr->obj))->umem_id;
+ mkey_attr.umem_id = ((struct mlx5_devx_umem *)(obj))->umem_id;
mkey_attr.pd = mlx5_pd->pdn;
mkey_attr.log_entity_size = 0;
mkey_attr.pg_access = 0;
@@ -183,11 +182,15 @@
mkey_attr.relaxed_ordering_write = attr.relaxed_ordering_write;
mkey_attr.relaxed_ordering_read = attr.relaxed_ordering_read;
}
- pmd_mr->mkey = mlx5_devx_cmd_mkey_create(mlx5_pd->devx_ctx, &mkey_attr);
- if (!pmd_mr->mkey) {
- claim_zero(mlx5_os_umem_dereg(pmd_mr->obj));
+ mkey = mlx5_devx_cmd_mkey_create(mlx5_pd->devx_ctx, &mkey_attr);
+ if (!mkey) {
+ claim_zero(mlx5_os_umem_dereg(obj));
return -1;
}
+ pmd_mr->addr = addr;
+ pmd_mr->len = length;
+ pmd_mr->obj = obj;
+ pmd_mr->mkey = mkey;
pmd_mr->lkey = pmd_mr->mkey->id;
return 0;
}
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 14043b6..e2eb4db 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -471,14 +471,6 @@ struct mlx5_aso_cq {
uint64_t errors;
};
-struct mlx5_aso_devx_mr {
- void *buf;
- uint64_t length;
- struct mlx5dv_devx_umem *umem;
- struct mlx5_devx_obj *mkey;
- bool is_indirect;
-};
-
struct mlx5_aso_sq_elem {
struct mlx5_aso_age_pool *pool;
uint16_t burst_size;
@@ -489,7 +481,7 @@ struct mlx5_aso_sq {
struct mlx5_aso_cq cq;
struct mlx5_devx_sq sq_obj;
volatile uint64_t *uar_addr;
- struct mlx5_aso_devx_mr mr;
+ struct mlx5_pmd_mr mr;
uint16_t pi;
uint32_t head;
uint32_t tail;
diff --git a/drivers/net/mlx5/mlx5_flow_age.c b/drivers/net/mlx5/mlx5_flow_age.c
index 00cb20d..c0be7c3 100644
--- a/drivers/net/mlx5/mlx5_flow_age.c
+++ b/drivers/net/mlx5/mlx5_flow_age.c
@@ -61,90 +61,72 @@
/**
* Free MR resources.
*
+ * @param[in] sh
+ * Pointer to shared device context.
* @param[in] mr
* MR to free.
*/
static void
-mlx5_aso_devx_dereg_mr(struct mlx5_aso_devx_mr *mr)
+mlx5_aso_dereg_mr(struct mlx5_dev_ctx_shared *sh, struct mlx5_pmd_mr *mr)
{
- claim_zero(mlx5_devx_cmd_destroy(mr->mkey));
- if (!mr->is_indirect && mr->umem)
- claim_zero(mlx5_glue->devx_umem_dereg(mr->umem));
- mlx5_free(mr->buf);
+ void *addr = mr->addr;
+
+ sh->share_cache.dereg_mr_cb(mr);
+ mlx5_free(addr);
memset(mr, 0, sizeof(*mr));
}
/**
* Register Memory Region.
*
- * @param[in] ctx
- * Context returned from mlx5 open_device() glue function.
+ * @param[in] sh
+ * Pointer to shared device context.
* @param[in] length
* Size of MR buffer.
* @param[in/out] mr
* Pointer to MR to create.
* @param[in] socket
* Socket to use for allocation.
- * @param[in] pdn
- * Protection Domain number to use.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-mlx5_aso_devx_reg_mr(void *ctx, size_t length, struct mlx5_aso_devx_mr *mr,
- int socket, int pdn)
+mlx5_aso_reg_mr(struct mlx5_dev_ctx_shared *sh, size_t length,
+ struct mlx5_pmd_mr *mr, int socket)
{
- struct mlx5_devx_mkey_attr mkey_attr;
- mr->buf = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, length, 4096,
- socket);
- if (!mr->buf) {
- DRV_LOG(ERR, "Failed to create ASO bits mem for MR by Devx.");
+ int ret;
+
+ mr->addr = mlx5_malloc(MLX5_MEM_RTE | MLX5_MEM_ZERO, length, 4096,
+ socket);
+ if (!mr->addr) {
+ DRV_LOG(ERR, "Failed to create ASO bits mem for MR.");
return -1;
}
- mr->umem = mlx5_os_umem_reg(ctx, mr->buf, length,
- IBV_ACCESS_LOCAL_WRITE);
- if (!mr->umem) {
- DRV_LOG(ERR, "Failed to register Umem for MR by Devx.");
- goto error;
- }
- mkey_attr.addr = (uintptr_t)mr->buf;
- mkey_attr.size = length;
- mkey_attr.umem_id = mlx5_os_get_umem_id(mr->umem);
- mkey_attr.pd = pdn;
- mkey_attr.pg_access = 1;
- mkey_attr.klm_array = NULL;
- mkey_attr.klm_num = 0;
- mkey_attr.relaxed_ordering_read = 0;
- mkey_attr.relaxed_ordering_write = 0;
- mr->mkey = mlx5_devx_cmd_mkey_create(ctx, &mkey_attr);
- if (!mr->mkey) {
+ ret = sh->share_cache.reg_mr_cb(sh->pd, mr->addr, length, mr);
+ if (ret) {
DRV_LOG(ERR, "Failed to create direct Mkey.");
- goto error;
+ mlx5_free(mr->addr);
+ return -1;
}
- mr->length = length;
- mr->is_indirect = false;
return 0;
-error:
- if (mr->umem)
- claim_zero(mlx5_glue->devx_umem_dereg(mr->umem));
- mlx5_free(mr->buf);
- return -1;
}
/**
* Destroy Send Queue used for ASO access.
*
+ * @param[in] sh
+ * Pointer to shared device context.
* @param[in] sq
* ASO SQ to destroy.
*/
static void
-mlx5_aso_destroy_sq(struct mlx5_aso_sq *sq)
+mlx5_aso_destroy_sq(struct mlx5_dev_ctx_shared *sh, struct mlx5_aso_sq *sq)
{
mlx5_devx_sq_destroy(&sq->sq_obj);
mlx5_aso_cq_destroy(&sq->cq);
- mlx5_aso_devx_dereg_mr(&sq->mr);
+ mlx5_aso_dereg_mr(sh, &sq->mr);
memset(sq, 0, sizeof(*sq));
}
@@ -166,8 +148,8 @@
for (i = 0, wqe = &sq->sq_obj.aso_wqes[0]; i < size; ++i, ++wqe) {
wqe->general_cseg.sq_ds = rte_cpu_to_be_32((sq->sqn << 8) |
(sizeof(*wqe) >> 4));
- wqe->aso_cseg.lkey = rte_cpu_to_be_32(sq->mr.mkey->id);
- addr = (uint64_t)((uint64_t *)sq->mr.buf + i *
+ wqe->aso_cseg.lkey = rte_cpu_to_be_32(sq->mr.lkey);
+ addr = (uint64_t)((uint64_t *)sq->mr.addr + i *
MLX5_ASO_AGE_ACTIONS_PER_POOL / 64);
wqe->aso_cseg.va_h = rte_cpu_to_be_32((uint32_t)(addr >> 32));
wqe->aso_cseg.va_l_r = rte_cpu_to_be_32((uint32_t)addr | 1u);
@@ -184,31 +166,31 @@
/**
* Create Send Queue used for ASO access.
*
- * @param[in] ctx
- * Context returned from mlx5 open_device() glue function.
+ * @param[in] sh
+ * Pointer to shared device context.
* @param[in/out] sq
* Pointer to SQ to create.
* @param[in] socket
* Socket to use for allocation.
* @param[in] uar
* User Access Region object.
- * @param[in] pdn
- * Protection Domain number to use.
* @param[in] log_desc_n
* Log of number of descriptors in queue.
+ * @param[in] ts_format
+ * timestamp format supported by the queue.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-mlx5_aso_sq_create(void *ctx, struct mlx5_aso_sq *sq, int socket,
- void *uar, uint32_t pdn, uint16_t log_desc_n,
+mlx5_aso_sq_create(struct mlx5_dev_ctx_shared *sh, struct mlx5_aso_sq *sq,
+ int socket, void *uar, uint16_t log_desc_n,
uint32_t ts_format)
{
struct mlx5_devx_create_sq_attr attr = {
.user_index = 0xFFFF,
.wq_attr = (struct mlx5_devx_wq_attr){
- .pd = pdn,
+ .pd = sh->pdn,
.uar_page = mlx5_os_get_devx_uar_page_id(uar),
},
.ts_format = mlx5_ts_format_conv(ts_format),
@@ -220,17 +202,18 @@
uint16_t log_wqbb_n;
int ret;
- if (mlx5_aso_devx_reg_mr(ctx, (MLX5_ASO_AGE_ACTIONS_PER_POOL / 8) *
- sq_desc_n, &sq->mr, socket, pdn))
+ if (mlx5_aso_reg_mr(sh, (MLX5_ASO_AGE_ACTIONS_PER_POOL / 8) * sq_desc_n,
+ &sq->mr, socket))
return -1;
- if (mlx5_aso_cq_create(ctx, &sq->cq, log_desc_n, socket,
+ if (mlx5_aso_cq_create(sh->ctx, &sq->cq, log_desc_n, socket,
mlx5_os_get_devx_uar_page_id(uar)))
goto error;
sq->log_desc_n = log_desc_n;
attr.cqn = sq->cq.cq_obj.cq->id;
/* for mlx5_aso_wqe that is twice the size of mlx5_wqe */
log_wqbb_n = log_desc_n + 1;
- ret = mlx5_devx_sq_create(ctx, &sq->sq_obj, log_wqbb_n, &attr, socket);
+ ret = mlx5_devx_sq_create(sh->ctx, &sq->sq_obj, log_wqbb_n, &attr,
+ socket);
if (ret) {
DRV_LOG(ERR, "Can't create SQ object.");
rte_errno = ENOMEM;
@@ -250,7 +233,7 @@
mlx5_aso_init_sq(sq);
return 0;
error:
- mlx5_aso_destroy_sq(sq);
+ mlx5_aso_destroy_sq(sh, sq);
return -1;
}
@@ -266,9 +249,8 @@
int
mlx5_aso_queue_init(struct mlx5_dev_ctx_shared *sh)
{
- return mlx5_aso_sq_create(sh->ctx, &sh->aso_age_mng->aso_sq, 0,
- sh->tx_uar, sh->pdn, MLX5_ASO_QUEUE_LOG_DESC,
- sh->sq_ts_format);
+ return mlx5_aso_sq_create(sh, &sh->aso_age_mng->aso_sq, 0, sh->tx_uar,
+ MLX5_ASO_QUEUE_LOG_DESC, sh->sq_ts_format);
}
/**
@@ -280,7 +262,7 @@
void
mlx5_aso_queue_uninit(struct mlx5_dev_ctx_shared *sh)
{
- mlx5_aso_destroy_sq(&sh->aso_age_mng->aso_sq);
+ mlx5_aso_destroy_sq(sh, &sh->aso_age_mng->aso_sq);
}
/**
@@ -410,7 +392,7 @@
uint16_t idx = (sq->tail + i) & mask;
struct mlx5_aso_age_pool *pool = sq->elts[idx].pool;
uint64_t diff = curr - pool->time_of_last_age_check;
- uint64_t *addr = sq->mr.buf;
+ uint64_t *addr = sq->mr.addr;
int j;
addr += idx * MLX5_ASO_AGE_ACTIONS_PER_POOL / 64;
--
1.8.3.1
next parent reply other threads:[~2021-03-18 9:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1616061368-29768-1-git-send-email-michaelba@nvidia.com>
2021-03-18 9:56 ` Michael Baum [this message]
2021-03-18 9:56 ` [dpdk-stable] [PATCH 2/2] net/mlx5: workaround counter " Michael Baum
2021-04-26 12:48 ` [dpdk-stable] [PATCH v2] net/mlx5: workaround ASO " Michael Baum
2021-05-03 10:11 ` Raslan Darawsheh
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