From: Venkat Duvvuru <venkatkumar.duvv...@broadcom.com>
Currently, there are four flow related functions, namely
bnxt_flow_create, bnxt_flow_destroy, bnxt_flow_validate,
bnxt_flow_flush. All these functions are not multi-thread safe.
This patch fixes it by synchronizing these functions with a lock.
Reviewed-by: Kalesh Anakkur Purayil <kalesh-anakkur.pura...@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvv...@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
---
drivers/net/bnxt/bnxt.h | 6 +++++
drivers/net/bnxt/bnxt_ethdev.c | 23 ++++++++++++++++
drivers/net/bnxt/bnxt_flow.c | 49 +++++++++++++++++++++++++++-------
3 files changed, 69 insertions(+), 9 deletions(-)
diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 64cc06304..773227048 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -462,6 +462,7 @@ struct bnxt {
uint32_t flow_flags;
#define BNXT_FLOW_FLAG_L2_HDR_SRC_FILTER_EN BIT(0)
+ pthread_mutex_t flow_lock;
unsigned int rx_nr_rings;
unsigned int rx_cp_nr_rings;
unsigned int rx_num_qs_per_vnic;
@@ -571,6 +572,11 @@ void bnxt_schedule_fw_health_check(struct bnxt *bp);
bool is_bnxt_supported(struct rte_eth_dev *dev);
bool bnxt_stratus_device(struct bnxt *bp);
extern const struct rte_flow_ops bnxt_flow_ops;
+#define bnxt_acquire_flow_lock(bp) \
+ pthread_mutex_lock(&(bp)->flow_lock)
+
+#define bnxt_release_flow_lock(bp) \
+ pthread_mutex_unlock(&(bp)->flow_lock)
extern int bnxt_logtype_driver;
#define PMD_DRV_LOG_RAW(level, fmt, args...) \
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 5ef2ee0c4..f5cbc0038 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -4297,6 +4297,17 @@ static int bnxt_init_fw(struct bnxt *bp)
return 0;
}
+static int
+bnxt_init_locks(struct bnxt *bp)
+{
+ int err;
+
+ err = pthread_mutex_init(&bp->flow_lock, NULL);
+ if (err)
+ PMD_DRV_LOG(ERR, "Unable to initialize flow_lock\n");
+ return err;
+}
+
static int bnxt_init_resources(struct bnxt *bp, bool reconfig_dev)
{
int rc;
@@ -4350,6 +4361,10 @@ static int bnxt_init_resources(struct bnxt *bp, bool
reconfig_dev)
if (rc)
return rc;
+ rc = bnxt_init_locks(bp);
+ if (rc)
+ return rc;
+
return 0;
}
@@ -4430,6 +4445,12 @@ bnxt_dev_init(struct rte_eth_dev *eth_dev)
return rc;
}
+static void
+bnxt_uninit_locks(struct bnxt *bp)
+{
+ pthread_mutex_destroy(&bp->flow_lock);
+}
+
static int
bnxt_uninit_resources(struct bnxt *bp, bool reconfig_dev)
{
@@ -4451,6 +4472,8 @@ bnxt_uninit_resources(struct bnxt *bp, bool reconfig_dev)
bp->recovery_info = NULL;
}
+ bnxt_uninit_locks(bp);
+
return rc;
}
diff --git a/drivers/net/bnxt/bnxt_flow.c b/drivers/net/bnxt/bnxt_flow.c
index 8156b5b4b..d640a923a 100644
--- a/drivers/net/bnxt/bnxt_flow.c
+++ b/drivers/net/bnxt/bnxt_flow.c
@@ -1385,13 +1385,17 @@ bnxt_flow_validate(struct rte_eth_dev *dev,
struct bnxt_filter_info *filter;
int ret = 0;
+ bnxt_acquire_flow_lock(bp);
ret = bnxt_flow_args_validate(attr, pattern, actions, error);
- if (ret != 0)
+ if (ret != 0) {
+ bnxt_release_flow_lock(bp);
return ret;
+ }
filter = bnxt_get_unused_filter(bp);
if (filter == NULL) {
PMD_DRV_LOG(ERR, "Not enough resources for a new flow.\n");
+ bnxt_release_flow_lock(bp);
return -ENOMEM;
}
@@ -1423,6 +1427,7 @@ bnxt_flow_validate(struct rte_eth_dev *dev,
/* No need to hold on to this filter if we are just validating flow */
filter->fw_l2_filter_id = UINT64_MAX;
bnxt_free_filter(bp, filter);
+ bnxt_release_flow_lock(bp);
return ret;
}
@@ -1535,6 +1540,7 @@ bnxt_flow_create(struct rte_eth_dev *dev,
return flow;
}
+ bnxt_acquire_flow_lock(bp);
ret = bnxt_flow_args_validate(attr, pattern, actions, error);
if (ret != 0) {
PMD_DRV_LOG(ERR, "Not a validate flow.\n");
@@ -1630,6 +1636,7 @@ bnxt_flow_create(struct rte_eth_dev *dev,
STAILQ_INSERT_TAIL(&vnic->filter, filter, next);
PMD_DRV_LOG(ERR, "Successfully created flow.\n");
STAILQ_INSERT_TAIL(&vnic->flow_list, flow, next);
+ bnxt_release_flow_lock(bp);
return flow;
}
@@ -1650,6 +1657,7 @@ bnxt_flow_create(struct rte_eth_dev *dev,
"Failed to create flow.");
rte_free(flow);
flow = NULL;
+ bnxt_release_flow_lock(bp);
return flow;
}
@@ -1700,13 +1708,28 @@ bnxt_flow_destroy(struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct bnxt *bp = dev->data->dev_private;
- struct bnxt_filter_info *filter = flow->filter;
- struct bnxt_vnic_info *vnic = flow->vnic;
+ struct bnxt_filter_info *filter;
+ struct bnxt_vnic_info *vnic;
int ret = 0;
+ bnxt_acquire_flow_lock(bp);
+ if (!flow) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Invalid flow: failed to destroy flow.");
+ bnxt_release_flow_lock(bp);
+ return -EINVAL;
+ }
+
+ filter = flow->filter;
+ vnic = flow->vnic;
+
if (!filter) {
- ret = -EINVAL;
- goto done;
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
+ "Invalid flow: failed to destroy flow.");
+ bnxt_release_flow_lock(bp);
+ return -EINVAL;
}
if (filter->filter_type == HWRM_CFA_TUNNEL_REDIRECT_FILTER &&
@@ -1714,10 +1737,12 @@ bnxt_flow_destroy(struct rte_eth_dev *dev,
ret = bnxt_handle_tunnel_redirect_destroy(bp,
filter,
error);
- if (!ret)
+ if (!ret) {
goto done;
- else
+ } else {
+ bnxt_release_flow_lock(bp);
return ret;
+ }
}
ret = bnxt_match_filter(bp, filter);
@@ -1756,6 +1781,7 @@ bnxt_flow_destroy(struct rte_eth_dev *dev,
"Failed to destroy flow.");
}
+ bnxt_release_flow_lock(bp);
return ret;
}
@@ -1769,6 +1795,7 @@ bnxt_flow_flush(struct rte_eth_dev *dev, struct
rte_flow_error *error)
unsigned int i;
int ret = 0;
+ bnxt_acquire_flow_lock(bp);
for (i = 0; i < bp->max_vnics; i++) {
vnic = &bp->vnic_info[i];
if (vnic && vnic->fw_vnic_id == INVALID_VNIC_ID)
@@ -1785,10 +1812,12 @@ bnxt_flow_flush(struct rte_eth_dev *dev, struct
rte_flow_error *error)
bnxt_handle_tunnel_redirect_destroy(bp,
filter,
error);
- if (!ret)
+ if (!ret) {
goto done;
- else
+ } else {
+ bnxt_release_flow_lock(bp);
return ret;
+ }
}
if (filter->filter_type == HWRM_CFA_EM_FILTER)
@@ -1805,6 +1834,7 @@ bnxt_flow_flush(struct rte_eth_dev *dev, struct
rte_flow_error *error)
RTE_FLOW_ERROR_TYPE_HANDLE,
NULL,
"Failed to flush flow in HW.");
+ bnxt_release_flow_lock(bp);
return -rte_errno;
}
done:
@@ -1833,6 +1863,7 @@ bnxt_flow_flush(struct rte_eth_dev *dev, struct
rte_flow_error *error)
}
}
+ bnxt_release_flow_lock(bp);
return ret;
}
--
2.20.1 (Apple Git-117)
