When iavf send virtchnl command in eal-intr-thread, there will be
no response received from iavf_dev_virtchnl_handler for this
command during block and wait. Because iavf_dev_virtchnl_handler
is also registered in eal-intr-thread.
This commit add to poll the response for virtchnl command
when it is called by eal-intr-thread to fix this issue.
Fixes: 22b123a36d07 ("net/avf: initialize PMD")
Cc: sta...@dpdk.org
Signed-off-by: Kaiwen Deng <kaiwenx.d...@intel.com>
---
drivers/net/iavf/iavf_ethdev.c | 5 ++-
drivers/net/iavf/iavf_vchnl.c | 71 +++++++++++++++++++++++-----------
2 files changed, 52 insertions(+), 24 deletions(-)
diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
index 96004220a1..b72dbc8ceb 100644
--- a/drivers/net/iavf/iavf_ethdev.c
+++ b/drivers/net/iavf/iavf_ethdev.c
@@ -2647,6 +2647,9 @@ iavf_dev_init(struct rte_eth_dev *eth_dev)
adapter->dev_data = eth_dev->data;
adapter->stopped = 1;
+ if (iavf_dev_event_handler_init())
+ goto init_vf_err;
+
if (iavf_init_vf(eth_dev) != 0) {
PMD_INIT_LOG(ERR, "Init vf failed");
return -1;
@@ -2674,8 +2677,6 @@ iavf_dev_init(struct rte_eth_dev *eth_dev)
rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.addr,
ð_dev->data->mac_addrs[0]);
- if (iavf_dev_event_handler_init())
- goto init_vf_err;
if (vf->vf_res->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) {
/* register callback func to eal lib */
diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c
index 8cc5377bcf..cb353db008 100644
--- a/drivers/net/iavf/iavf_vchnl.c
+++ b/drivers/net/iavf/iavf_vchnl.c
@@ -256,6 +256,7 @@ iavf_read_msg_from_pf(struct iavf_adapter *adapter,
uint16_t buf_len,
vf->link_speed = iavf_convert_link_speed(speed);
}
iavf_dev_link_update(vf->eth_dev, 0);
+ iavf_dev_event_post(vf->eth_dev,
RTE_ETH_EVENT_INTR_LSC, NULL, 0);
if (vf->link_up && !vf->vf_reset) {
iavf_dev_watchdog_disable(adapter);
} else {
@@ -374,28 +375,48 @@ iavf_execute_vf_cmd(struct iavf_adapter *adapter, struct
iavf_cmd_info *args,
_clear_cmd(vf);
break;
default:
- /* For other virtchnl ops in running time,
- * wait for the cmd done flag.
- */
- do {
- if (vf->pend_cmd == VIRTCHNL_OP_UNKNOWN)
- break;
- iavf_msec_delay(ASQ_DELAY_MS);
- /* If don't read msg or read sys event, continue */
- } while (i++ < MAX_TRY_TIMES);
-
- if (i >= MAX_TRY_TIMES) {
- PMD_DRV_LOG(ERR, "No response for cmd %d", args->ops);
+ if (rte_thread_is_intr()) {
+ /* For virtchnl ops were executed in eal_intr_thread,
+ * need to poll the response.
+ */
+ do {
+ result = iavf_read_msg_from_pf(adapter,
args->out_size,
+ args->out_buffer);
+ if (result == IAVF_MSG_CMD)
+ break;
+ iavf_msec_delay(ASQ_DELAY_MS);
+ } while (i++ < MAX_TRY_TIMES);
+ if (i >= MAX_TRY_TIMES ||
+ vf->cmd_retval != VIRTCHNL_STATUS_SUCCESS) {
+ err = -1;
+ PMD_DRV_LOG(ERR, "No response or return failure
(%d)"
+ " for cmd %d", vf->cmd_retval,
args->ops);
+ }
_clear_cmd(vf);
- err = -EIO;
- } else if (vf->cmd_retval ==
- VIRTCHNL_STATUS_ERR_NOT_SUPPORTED) {
- PMD_DRV_LOG(ERR, "Cmd %d not supported", args->ops);
- err = -ENOTSUP;
- } else if (vf->cmd_retval != VIRTCHNL_STATUS_SUCCESS) {
- PMD_DRV_LOG(ERR, "Return failure %d for cmd %d",
- vf->cmd_retval, args->ops);
- err = -EINVAL;
+ } else {
+ /* For other virtchnl ops in running time,
+ * wait for the cmd done flag.
+ */
+ do {
+ if (vf->pend_cmd == VIRTCHNL_OP_UNKNOWN)
+ break;
+ iavf_msec_delay(ASQ_DELAY_MS);
+ /* If don't read msg or read sys event,
continue */
+ } while (i++ < MAX_TRY_TIMES);
+
+ if (i >= MAX_TRY_TIMES) {
+ PMD_DRV_LOG(ERR, "No response for cmd %d",
args->ops);
+ _clear_cmd(vf);
+ err = -EIO;
+ } else if (vf->cmd_retval ==
+ VIRTCHNL_STATUS_ERR_NOT_SUPPORTED) {
+ PMD_DRV_LOG(ERR, "Cmd %d not supported",
args->ops);
+ err = -ENOTSUP;
+ } else if (vf->cmd_retval != VIRTCHNL_STATUS_SUCCESS) {
+ PMD_DRV_LOG(ERR, "Return failure %d for cmd %d",
+ vf->cmd_retval, args->ops);
+ err = -EINVAL;
+ }
}
break;
}
@@ -409,8 +430,14 @@ iavf_execute_vf_cmd_safe(struct iavf_adapter *adapter,
{
struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(adapter);
int ret;
+ int is_intr_thread = rte_thread_is_intr();
- rte_spinlock_lock(&vf->aq_lock);
+ if (is_intr_thread) {
+ if (!rte_spinlock_trylock(&vf->aq_lock))
+ return -EIO;
+ } else {
+ rte_spinlock_lock(&vf->aq_lock);
+ }
ret = iavf_execute_vf_cmd(adapter, args, async);
rte_spinlock_unlock(&vf->aq_lock);
--
2.34.1
