From: Declan Doherty <declan.doherty@intel.com>
To: dev@dpdk.org
Cc: Declan Doherty <declan.doherty@intel.com>
Subject: [dpdk-dev] [PATCH v2] net/bond: change link status check to no-wait
Date: Wed, 28 Jun 2017 11:15:50 +0100 [thread overview]
Message-ID: <20170628101550.24643-1-declan.doherty@intel.com> (raw)
In-Reply-To: <20170626151347.16680-1-declan.doherty@intel.com>
In 2 modes (802.3ad and TLB) of the link bonding driver, monitoring of
link status is used to determine the active slaves to use. These
functions are currently using the rte_link_link_get which could block
for up to 9 seconds, depending on the slave device.
In the 802.3ad periodic callback and in the TLB slave callback the
link status of slaves are checked using rte_eth_link_get function.
This patch changes to the no-wait version of the link get function to
avoid the possible issues which could be introduced if this call was
to block for an extended period of time.
Fixes: 46fb4368 ("bond:add mode 4")
Fixes: 7c76a747 ("bond:add mode 5")
Signed-off-by: Declan Doherty <declan.doherty@intel.com>
---
drivers/net/bonding/rte_eth_bond_8023ad.c | 2 +-
drivers/net/bonding/rte_eth_bond_pmd.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/bonding/rte_eth_bond_8023ad.c b/drivers/net/bonding/rte_eth_bond_8023ad.c
index d2b7592..3a97336 100644
--- a/drivers/net/bonding/rte_eth_bond_8023ad.c
+++ b/drivers/net/bonding/rte_eth_bond_8023ad.c
@@ -758,7 +758,7 @@ bond_mode_8023ad_periodic_cb(void *arg)
uint16_t key;
slave_id = internals->active_slaves[i];
- rte_eth_link_get(slave_id, &link_info);
+ rte_eth_link_get_nowait(slave_id, &link_info);
rte_eth_macaddr_get(slave_id, &slave_addr);
if (link_info.link_status != 0) {
diff --git a/drivers/net/bonding/rte_eth_bond_pmd.c b/drivers/net/bonding/rte_eth_bond_pmd.c
index a8d9780..eff2a66 100644
--- a/drivers/net/bonding/rte_eth_bond_pmd.c
+++ b/drivers/net/bonding/rte_eth_bond_pmd.c
@@ -654,7 +654,7 @@ bandwidth_left(uint8_t port_id, uint64_t load, uint8_t update_idx,
{
struct rte_eth_link link_status;
- rte_eth_link_get(port_id, &link_status);
+ rte_eth_link_get_nowait(port_id, &link_status);
uint64_t link_bwg = link_status.link_speed * 1000000ULL / 8;
if (link_bwg == 0)
return;
--
2.9.4
next prev parent reply other threads:[~2017-06-28 10:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 15:13 [dpdk-dev] [PATCH] " Declan Doherty
2017-06-26 20:53 ` Chas Williams
2017-06-28 9:13 ` Declan Doherty
2017-06-28 10:15 ` Declan Doherty [this message]
2017-06-29 11:34 ` [dpdk-dev] [PATCH v2] " Ferruh Yigit
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