On 01/11/2018 08:06 PM, Ferruh Yigit wrote:
From: Stephen Hemminger <step...@networkplumber.org>
Use the new API (_rte_eth_linkstatus_set) to handle link status update.
Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
---
drivers/net/sfc/sfc_ethdev.c | 27 +++++++--------------------
drivers/net/sfc/sfc_ev.c | 23 ++++-------------------
2 files changed, 11 insertions(+), 39 deletions(-)
<...>
diff --git a/drivers/net/sfc/sfc_ev.c b/drivers/net/sfc/sfc_ev.c
index 7abe61ae5..242b1fae4 100644
--- a/drivers/net/sfc/sfc_ev.c
+++ b/drivers/net/sfc/sfc_ev.c
@@ -382,29 +382,14 @@ sfc_ev_link_change(void *arg, efx_link_mode_t link_mode)
{
struct sfc_evq *evq = arg;
struct sfc_adapter *sa = evq->sa;
- struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
struct rte_eth_link new_link;
- uint64_t new_link_u64;
- uint64_t old_link_u64;
-
- EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
sfc_port_link_mode_to_info(link_mode, &new_link);
+ if (_rte_eth_linkstatus_set(sa->eth_dev, &new_link) == 0)
+ return B_FALSE;
- new_link_u64 = *(uint64_t *)&new_link;
- do {
- old_link_u64 = rte_atomic64_read((rte_atomic64_t *)dev_link);
- if (old_link_u64 == new_link_u64)
- break;
-
- if (rte_atomic64_cmpset((volatile uint64_t *)dev_link,
- old_link_u64, new_link_u64)) {
- evq->sa->port.lsc_seq++;
- break;
- }
- } while (B_TRUE);
-
- return B_FALSE;
+ evq->sa->port.lsc_seq++;
+ return B_TRUE;
}
static const efx_ev_callbacks_t sfc_ev_callbacks = {
I've provided review notes for the callback a couple of times already,
but it is ignored.
The callback returns B_FALSE before the change and it must be preserved.
The return value must not depend on link status changes.
lsc_seq should be incremented in the case of any changes in link,
not up/down changes only and it should be preserved.
