From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [dpdk-dev] [PATCH v3 09/15] net/sfc: use new rte_eth_linkstatus functions
Date: Mon, 8 Jan 2018 09:45:08 -0800 [thread overview]
Message-ID: <20180108174514.14688-10-stephen@networkplumber.org> (raw)
In-Reply-To: <20180108174514.14688-1-stephen@networkplumber.org>
Use the new API (_rte_eth_linkstatus_set) to handle link status update.
Signed-off-by: Stephen Hemminger <stephen@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_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 2f5f86f84877..e0a12b32b1a3 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -238,22 +238,12 @@ static int
sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
struct sfc_adapter *sa = dev->data->dev_private;
- struct rte_eth_link *dev_link = &dev->data->dev_link;
- struct rte_eth_link old_link;
struct rte_eth_link current_link;
sfc_log_init(sa, "entry");
-retry:
- EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
- *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
-
if (sa->state != SFC_ADAPTER_STARTED) {
sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, ¤t_link);
- if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
- *(uint64_t *)&old_link,
- *(uint64_t *)¤t_link))
- goto retry;
} else if (wait_to_complete) {
efx_link_mode_t link_mode;
@@ -261,21 +251,18 @@ sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
link_mode = EFX_LINK_UNKNOWN;
sfc_port_link_mode_to_info(link_mode, ¤t_link);
- if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
- *(uint64_t *)&old_link,
- *(uint64_t *)¤t_link))
- goto retry;
} else {
sfc_ev_mgmt_qpoll(sa);
- *(int64_t *)¤t_link =
- rte_atomic64_read((rte_atomic64_t *)dev_link);
+ _rte_eth_linkstatus_get(dev, ¤t_link);
}
- if (old_link.link_status != current_link.link_status)
- sfc_info(sa, "Link status is %s",
- current_link.link_status ? "UP" : "DOWN");
+ if (_rte_eth_linkstatus_set(dev, ¤t_link) == 0)
+ return 0;
+
+ sfc_info(sa, "Link status is %s",
+ current_link.link_status ? "UP" : "DOWN");
- return old_link.link_status == current_link.link_status ? 0 : -1;
+ return -1;
}
static void
diff --git a/drivers/net/sfc/sfc_ev.c b/drivers/net/sfc/sfc_ev.c
index a16dc27b380e..3e96536a9d60 100644
--- a/drivers/net/sfc/sfc_ev.c
+++ b/drivers/net/sfc/sfc_ev.c
@@ -404,29 +404,14 @@ 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 = {
--
2.15.1
next prev parent reply other threads:[~2018-01-08 17:45 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 17:44 [dpdk-dev] [PATCH v3 00/15] common ethdev linkstatus functions Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 01/15] eal: introduce atomic exchange operation Stephen Hemminger
2018-01-11 17:01 ` Ferruh Yigit
2018-01-25 23:24 ` Stephen Hemminger
2018-03-08 22:12 ` Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 02/15] ethdev: add linkstatus get/set helper functions Stephen Hemminger
2018-01-09 10:30 ` Andrew Rybchenko
2018-01-09 16:29 ` Stephen Hemminger
2018-01-11 17:01 ` Ferruh Yigit
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 03/15] net/virtio: use eth_linkstatus_set Stephen Hemminger
2018-01-11 17:02 ` Ferruh Yigit
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 04/15] net/vmxnet3: use rte_eth_linkstatus_set Stephen Hemminger
2018-01-11 17:02 ` Ferruh Yigit
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 05/15] net/dpaa2: " Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 06/15] net/nfp: use rte_eth_linkstatus functions Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 07/15] net/e1000: use rte_eth_linkstatus helpers Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 08/15] net/ixgbe: use rte_eth_linkstatus functions Stephen Hemminger
2018-01-08 17:45 ` Stephen Hemminger [this message]
2018-01-09 10:35 ` [dpdk-dev] [PATCH v3 09/15] net/sfc: use new " Andrew Rybchenko
2018-01-09 16:27 ` Stephen Hemminger
2018-01-09 19:29 ` Andrew Rybchenko
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 10/15] net/i40e: use " Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 11/15] net/liquidio: use _rte_eth_linkstatus_set Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 12/15] net/thunderx: " Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 13/15] net/szedata: " Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 14/15] net/octeontx: use rte_eth_linkstatus_set Stephen Hemminger
2018-01-08 17:45 ` [dpdk-dev] [PATCH v3 15/15] net/enic: use _rte_eth_linkstatus_set Stephen Hemminger
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 01/15] eal: introduce atomic exchange operation Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 02/15] ethdev: add linkstatus get/set helper functions Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 03/15] net/virtio: use eth_linkstatus_set Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 04/15] net/vmxnet3: use rte_eth_linkstatus_set Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 05/15] net/dpaa2: " Ferruh Yigit
2018-01-16 9:44 ` Shreyansh Jain
2018-01-16 9:57 ` Shreyansh Jain
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 06/15] net/nfp: use rte_eth_linkstatus functions Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 07/15] net/e1000: use rte_eth_linkstatus helpers Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 08/15] net/ixgbe: use rte_eth_linkstatus functions Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 09/15] net/sfc: use new " Ferruh Yigit
2018-01-12 7:45 ` Andrew Rybchenko
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 10/15] net/i40e: use " Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 11/15] net/liquidio: use _rte_eth_linkstatus_set Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 12/15] net/thunderx: " Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 13/15] net/szedata: " Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 14/15] net/octeontx: use rte_eth_linkstatus_set Ferruh Yigit
2018-01-11 17:06 ` [dpdk-dev] [PATCH v4 15/15] net/enic: use _rte_eth_linkstatus_set Ferruh Yigit
2018-01-12 14:05 ` Hyong Youb Kim
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