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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Bruce Richardson <bruce.richardson@intel.com>,
Konstantin Ananyev <konstantin.ananyev@intel.com>,
Wenzhuo Lu <wenzhuo.lu@intel.com>
Cc: dev@dpdk.org, Ferruh Yigit <ferruh.yigit@intel.com>,
Stephen Hemminger <stephen@networkplumber.org>
Date: Thu, 11 Jan 2018 17:06:51 +0000
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<20180111170658.2809-1-ferruh.yigit@intel.com>
Subject: [dpdk-dev] [PATCH v4 08/15] net/ixgbe: use rte_eth_linkstatus
functions
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From: Stephen Hemminger <stephen@networkplumber.org>
Use the new helper functions from eth_dev for
handling atomic link_info update.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
drivers/net/ixgbe/ixgbe_ethdev.c | 99 +++++++---------------------------------
1 file changed, 17 insertions(+), 82 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 2fb9d5266..d62824506 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -20,7 +20,6 @@
#include <rte_debug.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
-#include <rte_atomic.h>
#include <rte_branch_prediction.h>
#include <rte_memory.h>
#include <rte_eal.h>
@@ -787,58 +786,6 @@ static const struct rte_ixgbe_xstats_name_off rte_ixgbevf_stats_strings[] = {
#define IXGBEVF_NB_XSTATS (sizeof(rte_ixgbevf_stats_strings) / \
sizeof(rte_ixgbevf_stats_strings[0]))
-/**
- * Atomically reads the link status information from global
- * structure rte_eth_dev.
- *
- * @param dev
- * - Pointer to the structure rte_eth_dev to read from.
- * - Pointer to the buffer to be saved with the link status.
- *
- * @return
- * - On success, zero.
- * - On failure, negative value.
- */
-static inline int
-rte_ixgbe_dev_atomic_read_link_status(struct rte_eth_dev *dev,
- struct rte_eth_link *link)
-{
- struct rte_eth_link *dst = link;
- struct rte_eth_link *src = &(dev->data->dev_link);
-
- if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
- *(uint64_t *)src) == 0)
- return -1;
-
- return 0;
-}
-
-/**
- * Atomically writes the link status information into global
- * structure rte_eth_dev.
- *
- * @param dev
- * - Pointer to the structure rte_eth_dev to read from.
- * - Pointer to the buffer to be saved with the link status.
- *
- * @return
- * - On success, zero.
- * - On failure, negative value.
- */
-static inline int
-rte_ixgbe_dev_atomic_write_link_status(struct rte_eth_dev *dev,
- struct rte_eth_link *link)
-{
- struct rte_eth_link *dst = &(dev->data->dev_link);
- struct rte_eth_link *src = link;
-
- if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
- *(uint64_t *)src) == 0)
- return -1;
-
- return 0;
-}
-
/*
* This function is the same as ixgbe_is_sfp() in base/ixgbe.h.
*/
@@ -2760,7 +2707,7 @@ ixgbe_dev_stop(struct rte_eth_dev *dev)
/* Clear recorded link status */
memset(&link, 0, sizeof(link));
- rte_ixgbe_dev_atomic_write_link_status(dev, &link);
+ _rte_eth_linkstatus_set(dev, &link);
if (!rte_intr_allow_others(intr_handle))
/* resume to the default handler */
@@ -3945,7 +3892,6 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
int wait_to_complete, int vf)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
- struct rte_eth_link link, old;
ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN;
struct ixgbe_interrupt *intr =
IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
@@ -3954,13 +3900,11 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
u32 speed = 0;
int wait = 1;
bool autoneg = false;
-
- link.link_status = ETH_LINK_DOWN;
- link.link_speed = 0;
- link.link_duplex = ETH_LINK_HALF_DUPLEX;
- link.link_autoneg = ETH_LINK_AUTONEG;
- memset(&old, 0, sizeof(old));
- rte_ixgbe_dev_atomic_read_link_status(dev, &old);
+ struct rte_eth_link link = {
+ .link_status = ETH_LINK_DOWN,
+ .link_duplex = ETH_LINK_HALF_DUPLEX,
+ .link_autoneg = ETH_LINK_AUTONEG,
+ };
hw->mac.get_link_status = true;
@@ -3984,19 +3928,15 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
if (diag != 0) {
link.link_speed = ETH_SPEED_NUM_100M;
link.link_duplex = ETH_LINK_FULL_DUPLEX;
- rte_ixgbe_dev_atomic_write_link_status(dev, &link);
- if (link.link_status == old.link_status)
- return -1;
- return 0;
+
+ return _rte_eth_linkstatus_set(dev, &link);
}
if (link_up == 0) {
- rte_ixgbe_dev_atomic_write_link_status(dev, &link);
intr->flags |= IXGBE_FLAG_NEED_LINK_CONFIG;
- if (link.link_status == old.link_status)
- return -1;
- return 0;
+ return _rte_eth_linkstatus_set(dev, &link);
}
+
intr->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG;
link.link_status = ETH_LINK_UP;
link.link_duplex = ETH_LINK_FULL_DUPLEX;
@@ -4028,12 +3968,8 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev,
link.link_speed = ETH_SPEED_NUM_10G;
break;
}
- rte_ixgbe_dev_atomic_write_link_status(dev, &link);
- if (link.link_status == old.link_status)
- return -1;
-
- return 0;
+ return _rte_eth_linkstatus_set(dev, &link);
}
static int
@@ -4232,8 +4168,8 @@ ixgbe_dev_link_status_print(struct rte_eth_dev *dev)
struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
struct rte_eth_link link;
- memset(&link, 0, sizeof(link));
- rte_ixgbe_dev_atomic_read_link_status(dev, &link);
+ _rte_eth_linkstatus_get(dev, &link);
+
if (link.link_status) {
PMD_INIT_LOG(INFO, "Port %d: Link Up - speed %u Mbps - %s",
(int)(dev->data->port_id),
@@ -4268,7 +4204,6 @@ ixgbe_dev_interrupt_action(struct rte_eth_dev *dev,
struct ixgbe_interrupt *intr =
IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
int64_t timeout;
- struct rte_eth_link link;
struct ixgbe_hw *hw =
IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
@@ -4285,9 +4220,10 @@ ixgbe_dev_interrupt_action(struct rte_eth_dev *dev,
}
if (intr->flags & IXGBE_FLAG_NEED_LINK_UPDATE) {
+ struct rte_eth_link link;
+
/* get the link status before link update, for predicting later */
- memset(&link, 0, sizeof(link));
- rte_ixgbe_dev_atomic_read_link_status(dev, &link);
+ _rte_eth_linkstatus_get(dev, &link);
ixgbe_dev_link_update(dev, 0);
@@ -6806,9 +6742,8 @@ ixgbe_start_timecounters(struct rte_eth_dev *dev)
uint32_t shift = 0;
/* Get current link speed. */
- memset(&link, 0, sizeof(link));
ixgbe_dev_link_update(dev, 1);
- rte_ixgbe_dev_atomic_read_link_status(dev, &link);
+ _rte_eth_linkstatus_get(dev, &link);
switch (link.link_speed) {
case ETH_SPEED_NUM_100M:
--
2.14.3